| 7,6 → 7,7 |
|---|
| Used by: ViaThinkSoft (De)Coder 4.0 |
| ViaThinkSoft (De)Coder 4.1 |
| Author: Daniel Marschall |
| Last update: April, 30th 2024 |
| |
| |
| CONTENTS |
| 22,15 → 23,8 |
|---|
| |
| [5.0] DC4 Standard 3 used by (De)Coder 5.0 |
| |
| [APP A] Available cipher algorithms of DEC 5.1c |
| |
| [APP B] Available cipher modes of DEC 5.1c |
| |
| [APP C] Available hash algorithms of DEC 5.1c |
| |
| [APP D] Comments |
| [APP A] Comments |
| * Links to websites |
| * CTSx and KDfx |
| |
| |
| [1.0] SAMPLE FILE-FORMAT BY HAGEN REDDMANN |
| 39,82 → 33,82 |
|---|
| This file format is NOT used by (De)Coder. |
| It is only the guideline of the DC4-Format. |
| Hagen Reddmann posted the demo-algorithm in this topic: |
| http://www.delphipraxis.net/topic79794,0,asc,0.html (in German) |
| https://www.delphipraxis.net/topic79794,0,asc,0.html (in German) |
| |
| --------------------------------------------------------------------------------------------------- |
| Offset Type Size Content/Description |
| --------------------------------------------------------------------------------------------------- |
| 00h Long 4 DEC 5.1c Cipher idendity with identity-base 0x84485225 |
| 0x51F07042 TCipher_Blowfish |
| 0xB6936130 TCipher_Twofish |
| 0x3C212341 TCipher_IDEA |
| 0x42DBD0CA TCipher_Cast256 |
| 0x43B28323 TCipher_Mars |
| 0x76BA0D8C TCipher_RC4 |
| 0x98B46CA0 TCipher_RC6 |
| 0xFDA1E273 TCipher_Rijndael (default) |
| 0x2C4D11CF TCipher_Square |
| 0x96954A47 TCipher_SCOP |
| 0x47E376A6 TCipher_Sapphire |
| 0x6113DA7A TCipher_1DES |
| 0x73A67594 TCipher_2DES |
| 0xCB1A12F1 TCipher_3DES |
| 0x75D8876B TCipher_2DDES |
| 0x48B8AEDB TCipher_3DDES |
| 0x18A1F944 TCipher_3TDES |
| 0x51C323C2 TCipher_3Way |
| 0xE864D553 TCipher_Cast128 |
| 0xA1EEEAAF TCipher_Gost |
| 0x56555753 TCipher_Misty |
| 0x5BF00A6F TCipher_NewDES |
| 0xB211D023 TCipher_Q128 |
| 0x9FD9A8B9 TCipher_RC2 |
| 0x01BD3D1A TCipher_RC5 |
| 0x92D7CD5C TCipher_SAFER |
| 0x8B78B805 TCipher_Shark |
| 0xD731ED9F TCipher_Skipjack |
| 0x0402530B TCipher_TEA |
| 0x6B431EA1 TCipher_TEAN |
| 0x51F07042 TCipher_Blowfish (KeySize: 56, BlockSize: 8, BufferSize: 8) |
| 0xB6936130 TCipher_Twofish (KeySize: 32, BlockSize: 16, BufferSize: 16) |
| 0x3C212341 TCipher_IDEA (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0x42DBD0CA TCipher_Cast256 (KeySize: 32, BlockSize: 16, BufferSize: 16) |
| 0x43B28323 TCipher_Mars (KeySize: 56, BlockSize: 16, BufferSize: 16) |
| 0x76BA0D8C TCipher_RC4 (KeySize: 256, BlockSize: 1, BufferSize: 16) |
| 0x98B46CA0 TCipher_RC6 (KeySize: 256, BlockSize: 16, BufferSize: 16) |
| 0xFDA1E273 TCipher_Rijndael (KeySize: 32, BlockSize: 16, BufferSize: 16, default) |
| 0x2C4D11CF TCipher_Square (KeySize: 16, BlockSize: 16, BufferSize: 16) |
| 0x96954A47 TCipher_SCOP (KeySize: 48, BlockSize: 4, BufferSize: 32) |
| 0x47E376A6 TCipher_Sapphire(KeySize: 1024, BlockSize: 1, BufferSize: 32) |
| 0x6113DA7A TCipher_1DES (KeySize: 8, BlockSize: 8, BufferSize: 8) |
| 0x73A67594 TCipher_2DES (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0xCB1A12F1 TCipher_3DES (KeySize: 24, BlockSize: 8, BufferSize: 8) |
| 0x75D8876B TCipher_2DDES (KeySize: 16, BlockSize: 16, BufferSize: 16) |
| 0x48B8AEDB TCipher_3DDES (KeySize: 24, BlockSize: 16, BufferSize: 16) |
| 0x18A1F944 TCipher_3TDES (KeySize: 24, BlockSize: 24, BufferSize: 24) |
| 0x51C323C2 TCipher_3Way (KeySize: 12, BlockSize: 12, BufferSize: 12) |
| 0xE864D553 TCipher_Cast128 (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0xA1EEEAAF TCipher_Gost (KeySize: 32, BlockSize: 8, BufferSize: 8) |
| 0x56555753 TCipher_Misty (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0x5BF00A6F TCipher_NewDES (KeySize: 15, BlockSize: 8, BufferSize: 8) |
| 0xB211D023 TCipher_Q128 (KeySize: 16, BlockSize: 16, BufferSize: 16) |
| 0x9FD9A8B9 TCipher_RC2 (KeySize: 128, BlockSize: 8, BufferSize: 8) |
| 0x01BD3D1A TCipher_RC5 (KeySize: 256, BlockSize: 8, BufferSize: 8) |
| 0x92D7CD5C TCipher_SAFER (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0x8B78B805 TCipher_Shark (KeySize: 16, BlockSize: 8, BufferSize: 8, not working in DEC 5.1c) |
| 0xD731ED9F TCipher_Skipjack (KeySize: 10, BlockSize: 8, BufferSize: 8) |
| 0x0402530B TCipher_TEA (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0x6B431EA1 TCipher_TEAN (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 04h Byte 1 DEC 5.1c Cipher mode |
| 0x00h CTSx double CBC, with CFS8 padding of truncated final block (default) |
| 0x01h CBCx Cipher Block Chainung, with CFB8 padding of truncated final block |
| 0x02h CFB8 8bit Cipher Feedback mode |
| 0x03h CFBx CFB on Blocksize of Cipher |
| 0x04h OFB8 8bit Output Feedback mode |
| 0x05h OFBx OFB on Blocksize bytes |
| 0x06h CFS8 8Bit CFS, double CFB |
| 0x07h CFSx CFS on Blocksize bytes |
| 0x08h ECBx Electronic Code Book |
| 0x00 CTSx double CBC, with CFS8 padding of truncated final block (default, proprietary to DEC) |
| 0x01 CBCx Cipher Block Chainung, with CFB8 padding of truncated final block |
| 0x02 CFB8 8bit Cipher Feedback mode |
| 0x03 CFBx CFB on Blocksize of Cipher |
| 0x04 OFB8 8bit Output Feedback mode |
| 0x05 OFBx OFB on Blocksize bytes |
| 0x06 CFS8 8Bit CFS, double CFB |
| 0x07 CFSx CFS on Blocksize bytes |
| 0x08 ECBx Electronic Code Book (CalcMAC not possible) |
| 05h Long 4 DEC 5.1c Hash-Idendity with identity-base 0x84485225. |
| 0xD6B9FFD9 THash_MD2 |
| 0x3FDA5AEC THash_MD4 |
| 0x48DD6A7A THash_MD5 |
| 0xA5B81E29 THash_SHA |
| 0x7E3889A5 THash_SHA1 (default) |
| 0x9BFE22E7 THash_SHA256 |
| 0xC19C57B1 THash_SHA384 |
| 0xFDB0357F THash_SHA512 |
| 0x815B1495 THash_Sapphire |
| 0x3729E306 THash_Panama |
| 0x0B148DEE THash_Tiger |
| 0x42F77C97 THash_RipeMD128 |
| 0x284031A1 THash_RipeMD160 |
| 0xE848790E THash_RipeMD256 |
| 0x4FA820CB THash_RipeMD320 |
| 0xB59AAC5E THash_Haval128 |
| 0xDF2DE168 THash_Haval160 |
| 0xB6BB9C8B THash_Haval192 |
| 0xBE6A5E2C THash_Haval224 |
| 0x1F25A9C7 THash_Haval256 |
| 0x59D2CCC4 THash_Whirlpool |
| 0xA07F7DB2 THash_Whirlpool1 |
| 0x9C721C33 THash_Square |
| 0xE62E90A3 THash_Snefru128 |
| 0x4C91953A THash_Snefru256 |
| 0xD6B9FFD9 THash_MD2 (DigestSize: 16, BlockSize: 16) |
| 0x3FDA5AEC THash_MD4 (DigestSize: 16, BlockSize: 64) |
| 0x48DD6A7A THash_MD5 (DigestSize: 16, BlockSize: 64) |
| 0xA5B81E29 THash_SHA (DigestSize: 20, BlockSize: 64) |
| 0x7E3889A5 THash_SHA1 (DigestSize: 20, BlockSize: 64, default) |
| 0x9BFE22E7 THash_SHA256 (DigestSize: 32, BlockSize: 64) |
| 0xC19C57B1 THash_SHA384 (DigestSize: 48, BlockSize: 128) |
| 0xFDB0357F THash_SHA512 (DigestSize: 64, BlockSize: 128, default) |
| 0x815B1495 THash_Sapphire (DigestSize: 64, BlockSize: 1) |
| 0x3729E306 THash_Panama (DigestSize: 32, BlockSize: 32) |
| 0x0B148DEE THash_Tiger (DigestSize: 24, BlockSize: 64) |
| 0x42F77C97 THash_RipeMD128 (DigestSize: 16, BlockSize: 64) |
| 0x284031A1 THash_RipeMD160 (DigestSize: 20, BlockSize: 64) |
| 0xE848790E THash_RipeMD256 (DigestSize: 32, BlockSize: 64) |
| 0x4FA820CB THash_RipeMD320 (DigestSize: 40, BlockSize: 64) |
| 0xB59AAC5E THash_Haval128 (DigestSize: 16, BlockSize: 128) |
| 0xDF2DE168 THash_Haval160 (DigestSize: 20, BlockSize: 128) |
| 0xB6BB9C8B THash_Haval192 (DigestSize: 24, BlockSize: 128) |
| 0xBE6A5E2C THash_Haval224 (DigestSize: 28, BlockSize: 128) |
| 0x1F25A9C7 THash_Haval256 (DigestSize: 32, BlockSize: 128) |
| 0x59D2CCC4 THash_Whirlpool (DigestSize: 64, BlockSize: 64) |
| 0xA07F7DB2 THash_Whirlpool1 (DigestSize: 64, BlockSize: 64) |
| 0x9C721C33 THash_Square (DigestSize: 16, BlockSize: 16) |
| 0xE62E90A3 THash_Snefru128 (DigestSize: 16, BlockSize: 48) |
| 0x4C91953A THash_Snefru256 (DigestSize: 32, BlockSize: 32) |
| 09h Byte 1 Size of seed (Default value: 16 Bytes) |
| 0Ah Binary 0-255 Seed (Random data) |
| Long 4 Size of data |
| Binary 0-2^32-1 DEC 5.1c encrypted data; Password = Hash->KDfx(User-Password, Seed) |
| Binary var DEC 5.1c encrypted data; Password = Hash->KDfx(User-Password, Seed); KDFx is proprietary to DEC |
| Byte 1 Size of CalcMAC |
| Binary 0-255 CalcMAC; Size depends on cipher algorithm and cipher mode. The algorithms of DEC give out CalcMAC with the length 16-64. |
| --------------------------------------------------------------------------------------------------- |
| 135,11 → 129,11 |
|---|
| 01h Byte 1 Version flag; Hardcoded value: 01h. |
| 02h String var Original file name |
| Byte 1 Terminus Value: 1Fh ("?") |
| Binary 16 Seed (Random data. Default size: 16 bytes (10h) |
| Binary var DEC 5.1c encrypted data |
| Password: Hash->KDfx(User-Password, Seed) |
| Binary 16 Seed (Random data. Default size: 16 bytes = 0x10 |
| Binary var DEC 5.1c encrypted data (read until file end minus the size of the checksum) |
| Password: Hash->KDfx(User-Password, Seed); KDFx is proprietary to DEC |
| Algorithm: RIJNDAEL (AES) |
| Mode: CTSx |
| Mode: CTSx (proprietary to DEC) |
| Binary var Checksum of the data before encryption |
| Default hash configuration |
| Algorithm: SHA 512 |
| 166,38 → 160,38 |
|---|
| Byte 1 Terminus Value: 1Fh ("?") |
| Long 4 DEC 5.1c Idendity-Base; Default 0x84671842 |
| Long 4 DEC 5.1c Cipher idendity. If the default identitiy base 0x84671842 is used, then the identities are: |
| 0xFAD52117 TCipher_Blowfish |
| 0x1DB63065 TCipher_Twofish |
| 0x97047214 TCipher_IDEA |
| 0xE9FE819F TCipher_Cast256 |
| 0xE897D276 TCipher_Mars |
| 0xDD9F5CD9 TCipher_RC4 |
| 0x33913DF5 TCipher_RC6 |
| 0x5684B326 TCipher_Rijndael (default) |
| 0x8768409A TCipher_Square |
| 0x3DB01B12 TCipher_SCOP |
| 0xECC627F3 TCipher_Sapphire |
| 0xCA368B2F TCipher_1DES |
| 0xD88324C1 TCipher_2DES |
| 0x603F43A4 TCipher_3DES |
| 0xDEFDD63E TCipher_2DDES |
| 0xE39DFF8E TCipher_3DDES |
| 0xB384A811 TCipher_3TDES |
| 0xFAE67297 TCipher_3Way |
| 0x43418406 TCipher_Cast128 |
| 0x0ACBBBFA TCipher_Gost |
| 0xFD700606 TCipher_Misty |
| 0xF0D55B3A TCipher_NewDES |
| 0x19348176 TCipher_Q128 |
| 0x34FCF9EC TCipher_RC2 |
| 0xAA986C4F TCipher_RC5 |
| 0x39F29C09 TCipher_SAFER |
| 0x205DE950 TCipher_Shark |
| 0x7C14BCCA TCipher_Skipjack |
| 0xAF27025E TCipher_TEA |
| 0xC0664FF4 TCipher_TEAN |
| Byte 1 DEC 5.1c Cipher mode (see appendix B) |
| 0x00 CTSx double CBC, with CFS8 padding of truncated final block (default) |
| 0xFAD52117 TCipher_Blowfish (KeySize: 56, BlockSize: 8, BufferSize: 8) |
| 0x1DB63065 TCipher_Twofish (KeySize: 32, BlockSize: 16, BufferSize: 16) |
| 0x97047214 TCipher_IDEA (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0xE9FE819F TCipher_Cast256 (KeySize: 32, BlockSize: 16, BufferSize: 16) |
| 0xE897D276 TCipher_Mars (KeySize: 56, BlockSize: 16, BufferSize: 16) |
| 0xDD9F5CD9 TCipher_RC4 (KeySize: 256, BlockSize: 1, BufferSize: 16) |
| 0x33913DF5 TCipher_RC6 (KeySize: 256, BlockSize: 16, BufferSize: 16) |
| 0x5684B326 TCipher_Rijndael (KeySize: 32, BlockSize: 16, BufferSize: 16, default) |
| 0x8768409A TCipher_Square (KeySize: 16, BlockSize: 16, BufferSize: 16) |
| 0x3DB01B12 TCipher_SCOP (KeySize: 48, BlockSize: 4, BufferSize: 32) |
| 0xECC627F3 TCipher_Sapphire(KeySize: 1024, BlockSize: 1, BufferSize: 32) |
| 0xCA368B2F TCipher_1DES (KeySize: 8, BlockSize: 8, BufferSize: 8) |
| 0xD88324C1 TCipher_2DES (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0x603F43A4 TCipher_3DES (KeySize: 24, BlockSize: 8, BufferSize: 8) |
| 0xDEFDD63E TCipher_2DDES (KeySize: 16, BlockSize: 16, BufferSize: 16) |
| 0xE39DFF8E TCipher_3DDES (KeySize: 24, BlockSize: 16, BufferSize: 16) |
| 0xB384A811 TCipher_3TDES (KeySize: 24, BlockSize: 24, BufferSize: 24) |
| 0xFAE67297 TCipher_3Way (KeySize: 12, BlockSize: 12, BufferSize: 12) |
| 0x43418406 TCipher_Cast128 (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0x0ACBBBFA TCipher_Gost (KeySize: 32, BlockSize: 8, BufferSize: 8) |
| 0xFD700606 TCipher_Misty (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0xF0D55B3A TCipher_NewDES (KeySize: 15, BlockSize: 8, BufferSize: 8) |
| 0x19348176 TCipher_Q128 (KeySize: 16, BlockSize: 16, BufferSize: 16) |
| 0x34FCF9EC TCipher_RC2 (KeySize: 128, BlockSize: 8, BufferSize: 8) |
| 0xAA986C4F TCipher_RC5 (KeySize: 256, BlockSize: 8, BufferSize: 8) |
| 0x39F29C09 TCipher_SAFER (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0x205DE950 TCipher_Shark (KeySize: 16, BlockSize: 8, BufferSize: 8, not working in DEC 5.1c) |
| 0x7C14BCCA TCipher_Skipjack (KeySize: 10, BlockSize: 8, BufferSize: 8) |
| 0xAF27025E TCipher_TEA (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0xC0664FF4 TCipher_TEAN (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| Byte 1 DEC 5.1c Cipher mode |
| 0x00 CTSx double CBC, with CFS8 padding of truncated final block (default, proprietary to DEC) |
| 0x01 CBCx Cipher Block Chainung, with CFB8 padding of truncated final block |
| 0x02 CFB8 8bit Cipher Feedback mode |
| 0x03 CFBx CFB on Blocksize of Cipher |
| 205,37 → 199,37 |
|---|
| 0x05 OFBx OFB on Blocksize bytes |
| 0x06 CFS8 8Bit CFS, double CFB |
| 0x07 CFSx CFS on Blocksize bytes |
| 0x08 ECBx Electronic Code Book |
| 0x08 ECBx Electronic Code Book (CalcMAC not possible) |
| Long 4 DEC 5.1c Hash idendity. If the default identitiy base 0x84671842 is used, then the identities are: |
| 0x7D9CAE8C THash_MD2 |
| 0x94FF0BB9 THash_MD4 |
| 0xE3F83B2F THash_MD5 |
| 0x0E9D4F7C THash_SHA |
| 0xD51DD8F0 THash_SHA1 |
| 0x30DB73B2 THash_SHA256 |
| 0x6AB906E4 THash_SHA384 |
| 0x5695642A THash_SHA512 (default) |
| 0x2A7E45C0 THash_Sapphire |
| 0x9C0CB253 THash_Panama |
| 0xA031DCBB THash_Tiger |
| 0xE9D22DC2 THash_RipeMD128 |
| 0x836560F4 THash_RipeMD160 |
| 0x436D285B THash_RipeMD256 |
| 0xE48D719E THash_RipeMD320 |
| 0x1EBFFD0B THash_Haval128 |
| 0x7408B03D THash_Haval160 |
| 0x1D9ECDDE THash_Haval192 |
| 0x154F0F79 THash_Haval224 |
| 0xB400F892 THash_Haval256 |
| 0xF2F79D91 THash_Whirlpool |
| 0x0B5A2CE7 THash_Whirlpool1 |
| 0x37574D66 THash_Square |
| 0x4D0BC1F6 THash_Snefru128 |
| 0xE7B4C46F THash_Snefru256 |
| 0x7D9CAE8C THash_MD2 (DigestSize: 16, BlockSize: 16) |
| 0x94FF0BB9 THash_MD4 (DigestSize: 16, BlockSize: 64) |
| 0xE3F83B2F THash_MD5 (DigestSize: 16, BlockSize: 64) |
| 0x0E9D4F7C THash_SHA (DigestSize: 20, BlockSize: 64) |
| 0xD51DD8F0 THash_SHA1 (DigestSize: 20, BlockSize: 64) |
| 0x30DB73B2 THash_SHA256 (DigestSize: 32, BlockSize: 64) |
| 0x6AB906E4 THash_SHA384 (DigestSize: 48, BlockSize: 128) |
| 0x5695642A THash_SHA512 (DigestSize: 64, BlockSize: 128, default) |
| 0x2A7E45C0 THash_Sapphire (DigestSize: 64, BlockSize: 1) |
| 0x9C0CB253 THash_Panama (DigestSize: 32, BlockSize: 32) |
| 0xA031DCBB THash_Tiger (DigestSize: 24, BlockSize: 64) |
| 0xE9D22DC2 THash_RipeMD128 (DigestSize: 16, BlockSize: 64) |
| 0x836560F4 THash_RipeMD160 (DigestSize: 20, BlockSize: 64) |
| 0x436D285B THash_RipeMD256 (DigestSize: 32, BlockSize: 64) |
| 0xE48D719E THash_RipeMD320 (DigestSize: 40, BlockSize: 64) |
| 0x1EBFFD0B THash_Haval128 (DigestSize: 16, BlockSize: 128) |
| 0x7408B03D THash_Haval160 (DigestSize: 20, BlockSize: 128) |
| 0x1D9ECDDE THash_Haval192 (DigestSize: 24, BlockSize: 128) |
| 0x154F0F79 THash_Haval224 (DigestSize: 28, BlockSize: 128) |
| 0xB400F892 THash_Haval256 (DigestSize: 32, BlockSize: 128) |
| 0xF2F79D91 THash_Whirlpool (DigestSize: 64, BlockSize: 64) |
| 0x0B5A2CE7 THash_Whirlpool1 (DigestSize: 64, BlockSize: 64) |
| 0x37574D66 THash_Square (DigestSize: 16, BlockSize: 16) |
| 0x4D0BC1F6 THash_Snefru128 (DigestSize: 16, BlockSize: 48) |
| 0xE7B4C46F THash_Snefru256 (DigestSize: 32, BlockSize: 32) |
| Byte 1 Size of seed; Default value: 32 byte |
| Binary 0-255 Seed (Random data) |
| Binary var With DEC 5.1c encrypted data, encrypted with password |
| Password = Hash->KDfx(User-Password, Seed) |
| Binary var With DEC 5.1c encrypted data, encrypted with password (read until file end minus the size of the checksum and the file terminus) |
| Password = Hash->KDfx(User-Password, Seed); KDFx is proprietary to DEC |
| Binary var Secured checksum of the data before encryption |
| = Hash(Hash(Original Data) & Seed & User-Password) |
| Size dependend on hash algorithm. |
| 262,46 → 256,47 |
|---|
| 00h: No |
| 01h: Yes |
| 03h Long 4 Size of the encrypted filename that follows |
| 07h Binary 0-2^32-1 Original file name, not null-terminated WideString |
| 07h Binary var Original file name, not null-terminated WideString |
| Encrypted with DEC 5.1c (cipher/hash see below) |
| If offset 02h of this part has the value 00h: |
| Encryption-Password = Hash->KDfx(5Eh D1h 6Bh 12h 7Dh B4h C4h 3Ch, Seed) |
| If offset 02h of this part has the value 01h: |
| Encryption-Password = Hash->KDfx(User-Password, Seed) |
| KDFx is proprietary to DEC |
| Long 4 DEC 5.1c Idendity-Base; Default Idendity-Base: 0x19387612 |
| Long 4 DEC 5.1c Cipher idendity. If the default identitiy base 0x84671842 is used, then the identities are: |
| 0xEC871D7C TCipher_Blowfish |
| 0x0BE40C0E TCipher_Twofish |
| 0x81564E7F TCipher_IDEA |
| 0xFFACBDF4 TCipher_Cast256 |
| 0xFEC5EE1D TCipher_Mars |
| 0xCBCD60B2 TCipher_RC4 |
| 0x25C3019E TCipher_RC6 |
| 0x40D68F4D TCipher_Rijndael (default) |
| 0x913A7CF1 TCipher_Square |
| 0x2BE22779 TCipher_SCOP |
| 0xFA941B98 TCipher_Sapphire |
| 0xDC64B744 TCipher_1DES |
| 0xCED118AA TCipher_2DES |
| 0x766D7FCF TCipher_3DES |
| 0xC8AFEA55 TCipher_2DDES |
| 0xF5CFC3E5 TCipher_3DDES |
| 0xA5D6947A TCipher_3TDES |
| 0xECB44EFC TCipher_3Way |
| 0x5513B86D TCipher_Cast128 |
| 0x1C998791 TCipher_Gost |
| 0xEB223A6D TCipher_Misty |
| 0xE6876751 TCipher_NewDES |
| 0x0F66BD1D TCipher_Q128 |
| 0x22AEC587 TCipher_RC2 |
| 0xBCCA5024 TCipher_RC5 |
| 0x2FA0A062 TCipher_SAFER |
| 0x360FD53B TCipher_Shark |
| 0x6A4680A1 TCipher_Skipjack |
| 0xB9753E35 TCipher_TEA |
| 0xD634739F TCipher_TEAN |
| Byte 1 DEC 5.1c Cipher mode (see appendix B) |
| 0x00 CTSx double CBC, with CFS8 padding of truncated final block (default) |
| 0xEC871D7C TCipher_Blowfish (KeySize: 56, BlockSize: 8, BufferSize: 8) |
| 0x0BE40C0E TCipher_Twofish (KeySize: 32, BlockSize: 16, BufferSize: 16) |
| 0x81564E7F TCipher_IDEA (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0xFFACBDF4 TCipher_Cast256 (KeySize: 32, BlockSize: 16, BufferSize: 16) |
| 0xFEC5EE1D TCipher_Mars (KeySize: 56, BlockSize: 16, BufferSize: 16) |
| 0xCBCD60B2 TCipher_RC4 (KeySize: 256, BlockSize: 1, BufferSize: 16) |
| 0x25C3019E TCipher_RC6 (KeySize: 256, BlockSize: 16, BufferSize: 16) |
| 0x40D68F4D TCipher_Rijndael (KeySize: 32, BlockSize: 16, BufferSize: 16, default) |
| 0x913A7CF1 TCipher_Square (KeySize: 16, BlockSize: 16, BufferSize: 16) |
| 0x2BE22779 TCipher_SCOP (KeySize: 48, BlockSize: 4, BufferSize: 32) |
| 0xFA941B98 TCipher_Sapphire(KeySize: 1024, BlockSize: 1, BufferSize: 32) |
| 0xDC64B744 TCipher_1DES (KeySize: 8, BlockSize: 8, BufferSize: 8) |
| 0xCED118AA TCipher_2DES (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0x766D7FCF TCipher_3DES (KeySize: 24, BlockSize: 8, BufferSize: 8) |
| 0xC8AFEA55 TCipher_2DDES (KeySize: 16, BlockSize: 16, BufferSize: 16) |
| 0xF5CFC3E5 TCipher_3DDES (KeySize: 24, BlockSize: 16, BufferSize: 16) |
| 0xA5D6947A TCipher_3TDES (KeySize: 24, BlockSize: 24, BufferSize: 24) |
| 0xECB44EFC TCipher_3Way (KeySize: 12, BlockSize: 12, BufferSize: 12) |
| 0x5513B86D TCipher_Cast128 (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0x1C998791 TCipher_Gost (KeySize: 32, BlockSize: 8, BufferSize: 8) |
| 0xEB223A6D TCipher_Misty (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0xE6876751 TCipher_NewDES (KeySize: 15, BlockSize: 8, BufferSize: 8) |
| 0x0F66BD1D TCipher_Q128 (KeySize: 16, BlockSize: 16, BufferSize: 16) |
| 0x22AEC587 TCipher_RC2 (KeySize: 128, BlockSize: 8, BufferSize: 8) |
| 0xBCCA5024 TCipher_RC5 (KeySize: 256, BlockSize: 8, BufferSize: 8) |
| 0x2FA0A062 TCipher_SAFER (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0x360FD53B TCipher_Shark (KeySize: 16, BlockSize: 8, BufferSize: 8, not working in DEC 5.1c) |
| 0x6A4680A1 TCipher_Skipjack (KeySize: 10, BlockSize: 8, BufferSize: 8) |
| 0xB9753E35 TCipher_TEA (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0xD634739F TCipher_TEAN (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| Byte 1 DEC 5.1c Cipher mode |
| 0x00 CTSx double CBC, with CFS8 padding of truncated final block (default, proprietary to DEC) |
| 0x01 CBCx Cipher Block Chainung, with CFB8 padding of truncated final block |
| 0x02 CFB8 8bit Cipher Feedback mode |
| 0x03 CFBx CFB on Blocksize of Cipher |
| 309,37 → 304,37 |
|---|
| 0x05 OFBx OFB on Blocksize bytes |
| 0x06 CFS8 8Bit CFS, double CFB |
| 0x07 CFSx CFS on Blocksize bytes |
| 0x08 ECBx Electronic Code Book |
| 0x08 ECBx Electronic Code Book (CalcMAC not possible) |
| Long 4 DEC 5.1c Hash idendity. If the default identitiy base 0x84671842 is used, then the identities are: |
| 0x6BCE92E7 THash_MD2 |
| 0x82AD37D2 THash_MD4 |
| 0xF5AA0744 THash_MD5 |
| 0x18CF7317 THash_SHA |
| 0xC34FE49B THash_SHA1 |
| 0x26894FD9 THash_SHA256 |
| 0x7CEB3A8F THash_SHA384 |
| 0x40C75841 THash_SHA512 (default) |
| 0x3C2C79AB THash_Sapphire |
| 0x8A5E8E38 THash_Panama |
| 0xB663E0D0 THash_Tiger |
| 0xFF8011A9 THash_RipeMD128 |
| 0x95375C9F THash_RipeMD160 |
| 0x553F1430 THash_RipeMD256 |
| 0xF2DF4DF5 THash_RipeMD320 |
| 0x08EDC160 THash_Haval128 |
| 0x625A8C56 THash_Haval160 |
| 0x0BCCF1B5 THash_Haval192 |
| 0x031D3312 THash_Haval224 |
| 0xA252C4F9 THash_Haval256 |
| 0xE4A5A1FA THash_Whirlpool |
| 0x1D08108C THash_Whirlpool1 |
| 0x2105710D THash_Square |
| 0x5B59FD9D THash_Snefru128 |
| 0xF1E6F804 THash_Snefru256 |
| Byte 1 Size of seed; Default value: 32 byte (20h) |
| 0x6BCE92E7 THash_MD2 (DigestSize: 16, BlockSize: 16) |
| 0x82AD37D2 THash_MD4 (DigestSize: 16, BlockSize: 64) |
| 0xF5AA0744 THash_MD5 (DigestSize: 16, BlockSize: 64) |
| 0x18CF7317 THash_SHA (DigestSize: 20, BlockSize: 64) |
| 0xC34FE49B THash_SHA1 (DigestSize: 20, BlockSize: 64) |
| 0x26894FD9 THash_SHA256 (DigestSize: 32, BlockSize: 64) |
| 0x7CEB3A8F THash_SHA384 (DigestSize: 48, BlockSize: 128) |
| 0x40C75841 THash_SHA512 (DigestSize: 64, BlockSize: 128, default) |
| 0x3C2C79AB THash_Sapphire (DigestSize: 64, BlockSize: 1) |
| 0x8A5E8E38 THash_Panama (DigestSize: 32, BlockSize: 32) |
| 0xB663E0D0 THash_Tiger (DigestSize: 24, BlockSize: 64) |
| 0xFF8011A9 THash_RipeMD128 (DigestSize: 16, BlockSize: 64) |
| 0x95375C9F THash_RipeMD160 (DigestSize: 20, BlockSize: 64) |
| 0x553F1430 THash_RipeMD256 (DigestSize: 32, BlockSize: 64) |
| 0xF2DF4DF5 THash_RipeMD320 (DigestSize: 40, BlockSize: 64) |
| 0x08EDC160 THash_Haval128 (DigestSize: 16, BlockSize: 128) |
| 0x625A8C56 THash_Haval160 (DigestSize: 20, BlockSize: 128) |
| 0x0BCCF1B5 THash_Haval192 (DigestSize: 24, BlockSize: 128) |
| 0x031D3312 THash_Haval224 (DigestSize: 28, BlockSize: 128) |
| 0xA252C4F9 THash_Haval256 (DigestSize: 32, BlockSize: 128) |
| 0xE4A5A1FA THash_Whirlpool (DigestSize: 64, BlockSize: 64) |
| 0x1D08108C THash_Whirlpool1 (DigestSize: 64, BlockSize: 64) |
| 0x2105710D THash_Square (DigestSize: 16, BlockSize: 16) |
| 0x5B59FD9D THash_Snefru128 (DigestSize: 16, BlockSize: 48) |
| 0xF1E6F804 THash_Snefru256 (DigestSize: 32, BlockSize: 32) |
| Byte 1 Size of seed (default: 32 byte = 0x20) |
| Binary 0-255 Seed (Random data) |
| Binary var With DEC 5.1c encrypted data |
| Encryption-Password = Hash->KDfx(User-Password, Seed) |
| Binary var With DEC 5.1c encrypted data (read until file end minus the size of the checksum and the file terminus) |
| Encryption-Password = Hash->KDfx(User-Password, Seed); KDFx is proprietary to DEC |
| [I don't understand this paragraph anymore. You can probably ignore it.] |
| The final version of (De)Coder 4.1 can also use a 2-factor-method. |
| The "special-checksum" of a file can be used as the user password. |
| 374,22 → 369,56 |
|---|
| Bit 6: Reserved |
| Bit 7/MSB: Reserved |
| 01h Byte 1 Version flag; Hardcoded value: 04h |
| 02h Binary 27 Magic Sequence; Hardcoded value: "1.3.6.1.4.1.37476.2.2.1.4.4" |
| 1Dh Byte 1 Filename encrypted with User-Password? |
| 00h: No |
| 01h: Yes |
| 1Eh Long 4 Size of the encrypted filename that follows |
| 22h Binary 0-2^32-1 Original file name, not null-terminated WideString |
| Encrypted with DEC 6.0 (cipher/hash see below) |
| If offset 02h of this part has the value 00h: |
| Encryption-Password = Hash->KDfx(5Eh D1h 6Bh 12h 7Dh B4h C4h 3Ch, Seed) |
| If offset 02h of this part has the value 01h: |
| Encryption-Password = Hash->KDfx(User-Password, Seed) |
| // TODO: There should be a HMAC too??? |
| Long 4 DEC 5.1c Idendity-Base; Default Idendity-Base: 0x1259D82A |
| Long 4 DEC 5.1c Cipher idendity. If the default identitiy base 0x1259D82A is used, then the identities are: |
| (TODO: DEC 6.0 ciphers) |
| Byte 1 DEC 5.1c Cipher mode (see appendix B) |
| 02h Binary 27 Magic Sequence; Hardcoded value: "1.3.6.1.4.1.37476.2.2.1.4" |
| This is the OID { iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 37476 products(2) decoder(2) fileformat(1) dc4(4) } |
| 1Bh Byte 1 Size of the encrypted filename that follows |
| 1Ch Binary var Original file name; possible values: |
| - Original name in its entirety (foobar.txt) |
| - Just its extension (*.txt) |
| - Redacted (empty string) |
| Long 4 DEC 6.0 Idendity-Base; Default Idendity-Base: 0x1259D82A. |
| Backwards compatible with DEC 5.1c. Also, the following internal renaming is applied |
| to ensure that the identity base is equal to DEC 5.1c: |
| - TCipher_AES (DEC 6.0) will be renamed to TCipher_Rijndael (DEC 5.1) |
| - THash_Whirlpool0 (DEC 6.0) will be renamed to THash_Whirlpool (DEC 5.1) |
| - THash_SHA0 (DEC 6.0) will be renamed to THash_SHA (DEC 5.1) |
| Long 4 DEC 6.0 Cipher idendity. If the default identitiy base 0x1259D82A is used, then the identities are: |
| 0x14CEB4D7 TCipher_1DES (KeySize: 8, BlockSize: 8, BufferSize: 8) |
| 0x366FED8E TCipher_Mars (KeySize: 56, BlockSize: 16, BufferSize: 16) |
| 0xA2EC8332 TCipher_Skipjack (KeySize: 10, BlockSize: 8, BufferSize: 8) |
| 0xE70AA3F1 TCipher_SAFER (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0x9DB9BBFE TCipher_Cast128 (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0x03676321 TCipher_RC4 (KeySize: 256, BlockSize: 1, BufferSize: 16) |
| 0xBD7FDE66 TCipher_XTEA (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0xE34824EA TCipher_SCOP (KeySize: 48, BlockSize: 4, BufferSize: 32) |
| 0xEA04C614 TCipher_RC2 (KeySize: 128, BlockSize: 8, BufferSize: 8) |
| 0x2E2D64C2 TCipher_NewDES (KeySize: 15, BlockSize: 8, BufferSize: 8) |
| 0xED69020D TCipher_RC6 (KeySize: 256, BlockSize: 16, BufferSize: 16) |
| 0x067B1B39 TCipher_2DES (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0xC7CCBE8E TCipher_Q128 (KeySize: 16, BlockSize: 16, BufferSize: 16) |
| 0xC34E0F9D TCipher_Twofish (KeySize: 32, BlockSize: 16, BufferSize: 16) |
| 0x242D1EEF TCipher_Blowfish (KeySize: 56, BlockSize: 8, BufferSize: 8) |
| 0xB83DBC1A TCipher_AES128 (KeySize: 16, BlockSize: 16, BufferSize: 16) |
| 0x3D65C076 TCipher_3DDES (KeySize: 24, BlockSize: 16, BufferSize: 16) |
| 0x6D7C97E9 TCipher_3TDES (KeySize: 24, BlockSize: 24, BufferSize: 24) |
| 0x241E4D6F TCipher_3Way (KeySize: 12, BlockSize: 12, BufferSize: 12) |
| 0x71DF3DA6 TCipher_TEA (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0x66BC7BE6 TCipher_Null (KeySize: 0, BlockSize: 1, BufferSize: 8) |
| 0x1282B983 TCipher_AES256 (KeySize: 32, BlockSize: 16, BufferSize: 16) |
| 0xBEC77C5C TCipher_3DES (KeySize: 24, BlockSize: 8, BufferSize: 8) |
| 0x0005E9C6 TCipher_2DDES (KeySize: 16, BlockSize: 16, BufferSize: 16) |
| 0x59907F62 TCipher_Square (KeySize: 16, BlockSize: 16, BufferSize: 16) |
| 0x3706BE67 TCipher_Cast256 (KeySize: 32, BlockSize: 16, BufferSize: 16) |
| 0x323E180B TCipher_Sapphire (KeySize: 1024, BlockSize: 1, BufferSize: 32) |
| 0x49FC4DEC TCipher_IDEA (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0x988B2D75 TCipher_AES (KeySize: 32, BlockSize: 16, BufferSize: 16, default) |
| 0xFEA5D6A8 TCipher_Shark (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0xD4338402 TCipher_Gost (KeySize: 32, BlockSize: 8, BufferSize: 8) |
| 0x238839FE TCipher_Misty (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0x746053B7 TCipher_RC5 (KeySize: 256, BlockSize: 8, BufferSize: 8) |
| 0x1E9E700C TCipher_TEAN (KeySize: 16, BlockSize: 8, BufferSize: 8) |
| 0xBB1C8CCF TCipher_AES192 (KeySize: 24, BlockSize: 16, BufferSize: 16) |
| Byte 1 DEC 6.0 Cipher mode |
| 0x00 CTSx double CBC, with CFS8 padding of truncated final block (default, proprietary to DEC) |
| 0x01 CBCx Cipher Block Chainung, with CFB8 padding of truncated final block |
| 0x02 CFB8 8bit Cipher Feedback mode |
| 401,135 → 430,75 |
|---|
| 0x08 ECBx Electronic Code Book |
| 0x09 GCM Galois Counter Mode |
| 0x0A CTS3 double CBC, with less secure padding of truncated final block |
| Long 4 DEC 5.1c Hash idendity. If the default identitiy base 0x1259D82A is used, then the identities are: |
| (TODO: DEC 6.0 hashes) |
| Long 4 DEC 6.0 Hash idendity. If the default identitiy base 0x1259D82A is used, then the identities are: |
| 0x42F48DAB THash_Panama (DigestSize: 32, BlockSize: 32) |
| 0x9D9517A3 THash_RipeMD256 (DigestSize: 32, BlockSize: 64) |
| 0xC366F226 THash_Haval192 (DigestSize: 24, BlockSize: 128) |
| 0xB441391C THash_SHA384 (DigestSize: 48, BlockSize: 128) |
| 0xEE234C4A THash_SHA256 (DigestSize: 32, BlockSize: 64) |
| 0xC047C2F3 THash_Haval128 (DigestSize: 16, BlockSize: 128) |
| 0xA09321D2 THash_SHA3_224 (DigestSize: 28, BlockSize: 144) |
| 0xE9AF729E THash_Square (DigestSize: 16, BlockSize: 16) |
| 0x2F5EA7BA THash_Keccak_224 (DigestSize: 28, BlockSize: 144) |
| 0x6792C1A1 THash_SHA3_512 (DigestSize: 64, BlockSize: 72, default) |
| 0x93F3FE0E THash_Snefru128 (DigestSize: 16, BlockSize: 48) |
| 0xE85F47C9 THash_Keccak_512 (DigestSize: 64, BlockSize: 72) |
| 0xF4867A38 THash_Sapphire (DigestSize: 64, BlockSize: 1) |
| 0x5BBEA36F THash_SHA3_384 (DigestSize: 48, BlockSize: 104) |
| 0x7CE2D79E THash_SHA0 (DigestSize: 20, BlockSize: 64) |
| 0x8E115051 THash_Keccak_256 (DigestSize: 32, BlockSize: 136) |
| 0xD4732507 THash_Keccak_384 (DigestSize: 48, BlockSize: 104) |
| 0xAAF08FC5 THash_Haval160 (DigestSize: 20, BlockSize: 128) |
| 0x4F6CBBA1 THash_SHA224 (DigestSize: 28, BlockSize: 64) |
| 0xEC61EF43 THash_BCrypt (DigestSize: 23, BlockSize: 8) |
| 0xA2A52389 THash_Whirlpool0 (DigestSize: 64, BlockSize: 64) |
| 0x0BE5E708 THash_SHA1 (DigestSize: 20, BlockSize: 64) |
| 0x6AF8C76A THash_Haval256 (DigestSize: 32, BlockSize: 128) |
| 0x394CFB97 THash_Snefru256 (DigestSize: 32, BlockSize: 32) |
| 0xA3649174 THash_MD2 (DigestSize: 16, BlockSize: 16) |
| 0x4A073441 THash_MD4 (DigestSize: 16, BlockSize: 64) |
| 0x01DCD639 THash_SHA3_256 (DigestSize: 32, BlockSize: 136) |
| 0x5D9D5F0C THash_RipeMD160 (DigestSize: 20, BlockSize: 64) |
| 0x3D0004D7 THash_MD5 (DigestSize: 16, BlockSize: 64) |
| 0xE87A86C8 THash_WhirlpoolT (DigestSize: 64, BlockSize: 64) |
| 0xCBB73081 THash_Haval224 (DigestSize: 28, BlockSize: 128) |
| 0x7EC9E343 THash_Tiger (DigestSize: 24, BlockSize: 64) |
| 0x3A754E66 THash_RipeMD320 (DigestSize: 40, BlockSize: 64) |
| 0xF7DACACC THash_Shake256 (DigestSize: 0, BlockSize: 136) |
| 0x886D5BD2 THash_SHA512 (DigestSize: 64, BlockSize: 128) |
| 0x5D65CF55 THash_Shake128 (DigestSize: 0, BlockSize: 168) |
| 0xD5A2131F THash_Whirlpool1 (DigestSize: 64, BlockSize: 64) |
| 0x372A123A THash_RipeMD128 (DigestSize: 16, BlockSize: 64) |
| Byte 1 KDF version |
| 0x00 KDFx (default, proprietary to DEC) |
| 0x01 KDF1 |
| 0x02 KDF2 |
| 0x03 KDF3 |
| Long 4 HMAC Key Size (default: 32) |
| Byte 1 HMAC Key Size (default: 32 = 0x20) |
| Binary var HMAC Key (Random data) |
| Long 4 IV Size (default: 32) |
| Byte 1 IV Size (default: 32 = 0x20) |
| Binary var IV (Random Data) |
| Byte 1 Filler byte of last block (default: 0xFF) |
| Byte 1 Size of seed; Default value: 32 byte (20h) |
| Byte 1 Size of seed (default 32 = 0x20) |
| Binary 0-255 Seed (Random data) |
| Binary var With DEC 5.1c encrypted data |
| Encryption-Password = Hash->KDfx(User-Password, Seed) |
| Binary var With DEC 6.0 encrypted data (read until file end minus the size of the checksum) |
| Encryption-Password = Hash->KDf<Version>(User-Password, Seed) |
| Binary var HMAC checksum (Encrypt-then-HMAC) |
| = HMAC(HMacKey, EncryptedContents) |
| = HMAC(HMacKey, EncryptedData) |
| Size dependend on hash algorithm. |
| The algorithms of DEC give out a hash with the length 16-64. |
| --------------------------------------------------------------------------------------------------- |
| |
| |
| [APPENDIX A] AVAILABLE CIPHER ALGORITHMS OF DEC 5.1C |
| ==================================================== |
| == [APPENDIX A] COMMENTS == |
| |
| ----------------------------------------------------------------------------------------------------------------------------- |
| Class-Name Keysize Blocksize Buffersize Usersize Usersave Comments |
| ----------------------------------------------------------------------------------------------------------------------------- |
| TCipher_Blowfish 56 8 8 4168 No - |
| TCipher_Twofish 32 16 16 4256 No - |
| TCipher_IDEA 16 8 8 208 No - |
| TCipher_Cast256 32 16 16 384 No - |
| TCipher_Mars 56 16 16 160 No - |
| TCipher_RC4 256 1 16 258 Yes - |
| TCipher_RC6 256 16 16 272 No - |
| TCipher_Rijndael 32 16 16 480 No Used by (De)Coder 4.0 and 4.1. In DEC 6.0 called TCipher_AES. |
| TCipher_Square 16 16 16 288 No - |
| TCipher_SCOP 48 4 32 1548 Yes - |
| TCipher_Sapphire 1024 1 32 1044 Yes - |
| TCipher_1DES 8 8 8 256 No - |
| TCipher_2DES 16 8 8 512 No - |
| TCipher_3DES 24 8 8 768 No - |
| TCipher_2DDES 16 16 16 512 No - |
| TCipher_3DDES 24 16 16 768 No - |
| TCipher_3TDES 24 24 24 768 No - |
| TCipher_3Way 12 12 12 120 No - |
| TCipher_Cast128 16 8 8 128 No - |
| TCipher_Gost 32 8 8 32 No - |
| TCipher_Misty 16 8 8 128 No - |
| TCipher_NewDES 15 8 8 120 Yes - |
| TCipher_Q128 16 16 16 256 No - |
| TCipher_RC2 128 8 8 128 No - |
| TCipher_RC5 256 8 8 136 No - |
| TCipher_SAFER 16 8 8 768 No - |
| TCipher_Shark 16 8 8 112 No Not working in DEC 5.1c |
| TCipher_Skipjack 10 8 8 2560 No - |
| TCipher_TEA 16 8 8 32 No - |
| TCipher_TEAN 16 8 8 32 No - |
| ----------------------------------------------------------------------------------------------------------------------------- |
| |
| |
| [APPENDIX B] AVAILABLE CIPHER MODES OF DEC 5.1C |
| =============================================== |
| |
| ----------------------------------------------------------------------------------------------------------------------------- |
| Value Name Description Comments |
| ----------------------------------------------------------------------------------------------------------------------------- |
| 00h CTSx double CBC, with CFS8 padding of truncated final block Used by (De)Coder 4.0 and 4.1 |
| 01h CBCx Cipher Block Chainung, with CFB8 padding of truncated final block - |
| 02h CFB8 8bit Cipher Feedback mode - |
| 03h CFBx CFB on Blocksize of Cipher - |
| 04h OFB8 8bit Output Feedback mode - |
| 05h OFBx OFB on Blocksize bytes - |
| 06h CFS8 8Bit CFS, double CFB - |
| 07h CFSx CFS on Blocksize bytes - |
| 08h ECBx Electronic Code Book CalcMAC not possible |
| ----------------------------------------------------------------------------------------------------------------------------- |
| |
| |
| [APPENDIX C] AVAILABLE HASH ALGORITHMS OF DEC 5.1C |
| ================================================== |
| |
| ----------------------------------------------------------------------------------------------------------------------------- |
| Class-Name Digestsize Blocksize Comments |
| ----------------------------------------------------------------------------------------------------------------------------- |
| THash_MD2 16 16 - |
| THash_MD4 16 64 - |
| THash_MD5 16 64 - |
| THash_SHA 20 64 In DEC 6.0 called THash_SHA0 |
| THash_SHA1 20 64 - |
| THash_SHA256 32 64 - |
| THash_SHA384 48 128 - |
| THash_SHA512 64 128 Used by (De)Coder 4.0 and 4.1 |
| THash_Sapphire 64 1 - |
| THash_Panama 32 32 - |
| THash_Tiger 24 64 - |
| THash_RipeMD128 16 64 - |
| THash_RipeMD160 20 64 - |
| THash_RipeMD256 32 64 - |
| THash_RipeMD320 40 64 - |
| THash_Haval128 16 128 - |
| THash_Haval160 20 128 - |
| THash_Haval192 24 128 - |
| THash_Haval224 28 128 - |
| THash_Haval256 32 128 - |
| THash_Whirlpool 64 64 In DEC 6.0 called THash_Whirlpool0 |
| THash_Whirlpool1 64 64 - |
| THash_Square 16 16 - |
| THash_Snefru128 16 48 - |
| THash_Snefru256 32 32 - |
| ----------------------------------------------------------------------------------------------------------------------------- |
| |
| |
| == [APPENDIX D] COMMENTS == |
| |
| * Links to websites |
| |
| Source code and program "(De)Coder" downloadable at |
| http://www.viathinksoft.de/info/decoder/ (in German) |
| Source code and program "(De)Coder" downloadable at: |
| https://www.viathinksoft.com/projects/decoder |
| |
| Other informations about the file extension: |
| http://www.fileinfo.net/extension/dc4 |
| http://www.sharpened.net/helpcenter/file_extension.php?dc4 |
| Other information about the file extension: |
| https://fileinfo.com/extension/dc4 |
| |
| Delphi Encryption Compendium (DEC) downloadable at |
| http://dec.michael-puff.de/ (in German) |
| |
| * CTSx and KDfx |
| |
| CTSx and KDfx are some of the special DEC methods. |
| Please look at the DEC source code for further information. |
| Delphi Encryption Compendium (DEC) downloadable at: |
| https://github.com/MHumm/DelphiEncryptionCompendium |