--- a/src/eric7/Utilities/crypto/py3AES.py Wed Jul 13 11:16:20 2022 +0200
+++ b/src/eric7/Utilities/crypto/py3AES.py Wed Jul 13 14:55:47 2022 +0200
@@ -32,7 +32,7 @@
def append_PKCS7_padding(b):
"""
Function to pad the given data to a multiple of 16-bytes by PKCS7 padding.
-
+
@param b data to be padded (bytes)
@return padded data (bytes)
"""
@@ -43,18 +43,16 @@
def strip_PKCS7_padding(b):
"""
Function to strip off PKCS7 padding.
-
+
@param b data to be stripped (bytes)
@return stripped data (bytes)
@exception ValueError data padding is invalid
"""
if len(b) % 16 or not b:
- raise ValueError(
- "Data of len {0} can't be PCKS7-padded".format(len(b)))
+ raise ValueError("Data of len {0} can't be PCKS7-padded".format(len(b)))
numpads = b[-1]
if numpads > 16:
- raise ValueError(
- "Data ending with {0} can't be PCKS7-padded".format(b[-1]))
+ raise ValueError("Data ending with {0} can't be PCKS7-padded".format(b[-1]))
return b[:-numpads]
@@ -62,6 +60,7 @@
"""
Class implementing the Advanced Encryption Standard algorithm.
"""
+
# valid key sizes
KeySize = {
"SIZE_128": 16,
@@ -70,87 +69,788 @@
}
# Rijndael S-box
- sbox = [0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67,
- 0x2b, 0xfe, 0xd7, 0xab, 0x76, 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59,
- 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, 0xb7,
- 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1,
- 0x71, 0xd8, 0x31, 0x15, 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05,
- 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75, 0x09, 0x83,
- 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29,
- 0xe3, 0x2f, 0x84, 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b,
- 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf, 0xd0, 0xef, 0xaa,
- 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c,
- 0x9f, 0xa8, 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc,
- 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, 0xcd, 0x0c, 0x13, 0xec,
- 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19,
- 0x73, 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee,
- 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb, 0xe0, 0x32, 0x3a, 0x0a, 0x49,
- 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
- 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4,
- 0xea, 0x65, 0x7a, 0xae, 0x08, 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6,
- 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a, 0x70,
- 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9,
- 0x86, 0xc1, 0x1d, 0x9e, 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e,
- 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf, 0x8c, 0xa1,
- 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0,
- 0x54, 0xbb, 0x16]
+ sbox = [
+ 0x63,
+ 0x7C,
+ 0x77,
+ 0x7B,
+ 0xF2,
+ 0x6B,
+ 0x6F,
+ 0xC5,
+ 0x30,
+ 0x01,
+ 0x67,
+ 0x2B,
+ 0xFE,
+ 0xD7,
+ 0xAB,
+ 0x76,
+ 0xCA,
+ 0x82,
+ 0xC9,
+ 0x7D,
+ 0xFA,
+ 0x59,
+ 0x47,
+ 0xF0,
+ 0xAD,
+ 0xD4,
+ 0xA2,
+ 0xAF,
+ 0x9C,
+ 0xA4,
+ 0x72,
+ 0xC0,
+ 0xB7,
+ 0xFD,
+ 0x93,
+ 0x26,
+ 0x36,
+ 0x3F,
+ 0xF7,
+ 0xCC,
+ 0x34,
+ 0xA5,
+ 0xE5,
+ 0xF1,
+ 0x71,
+ 0xD8,
+ 0x31,
+ 0x15,
+ 0x04,
+ 0xC7,
+ 0x23,
+ 0xC3,
+ 0x18,
+ 0x96,
+ 0x05,
+ 0x9A,
+ 0x07,
+ 0x12,
+ 0x80,
+ 0xE2,
+ 0xEB,
+ 0x27,
+ 0xB2,
+ 0x75,
+ 0x09,
+ 0x83,
+ 0x2C,
+ 0x1A,
+ 0x1B,
+ 0x6E,
+ 0x5A,
+ 0xA0,
+ 0x52,
+ 0x3B,
+ 0xD6,
+ 0xB3,
+ 0x29,
+ 0xE3,
+ 0x2F,
+ 0x84,
+ 0x53,
+ 0xD1,
+ 0x00,
+ 0xED,
+ 0x20,
+ 0xFC,
+ 0xB1,
+ 0x5B,
+ 0x6A,
+ 0xCB,
+ 0xBE,
+ 0x39,
+ 0x4A,
+ 0x4C,
+ 0x58,
+ 0xCF,
+ 0xD0,
+ 0xEF,
+ 0xAA,
+ 0xFB,
+ 0x43,
+ 0x4D,
+ 0x33,
+ 0x85,
+ 0x45,
+ 0xF9,
+ 0x02,
+ 0x7F,
+ 0x50,
+ 0x3C,
+ 0x9F,
+ 0xA8,
+ 0x51,
+ 0xA3,
+ 0x40,
+ 0x8F,
+ 0x92,
+ 0x9D,
+ 0x38,
+ 0xF5,
+ 0xBC,
+ 0xB6,
+ 0xDA,
+ 0x21,
+ 0x10,
+ 0xFF,
+ 0xF3,
+ 0xD2,
+ 0xCD,
+ 0x0C,
+ 0x13,
+ 0xEC,
+ 0x5F,
+ 0x97,
+ 0x44,
+ 0x17,
+ 0xC4,
+ 0xA7,
+ 0x7E,
+ 0x3D,
+ 0x64,
+ 0x5D,
+ 0x19,
+ 0x73,
+ 0x60,
+ 0x81,
+ 0x4F,
+ 0xDC,
+ 0x22,
+ 0x2A,
+ 0x90,
+ 0x88,
+ 0x46,
+ 0xEE,
+ 0xB8,
+ 0x14,
+ 0xDE,
+ 0x5E,
+ 0x0B,
+ 0xDB,
+ 0xE0,
+ 0x32,
+ 0x3A,
+ 0x0A,
+ 0x49,
+ 0x06,
+ 0x24,
+ 0x5C,
+ 0xC2,
+ 0xD3,
+ 0xAC,
+ 0x62,
+ 0x91,
+ 0x95,
+ 0xE4,
+ 0x79,
+ 0xE7,
+ 0xC8,
+ 0x37,
+ 0x6D,
+ 0x8D,
+ 0xD5,
+ 0x4E,
+ 0xA9,
+ 0x6C,
+ 0x56,
+ 0xF4,
+ 0xEA,
+ 0x65,
+ 0x7A,
+ 0xAE,
+ 0x08,
+ 0xBA,
+ 0x78,
+ 0x25,
+ 0x2E,
+ 0x1C,
+ 0xA6,
+ 0xB4,
+ 0xC6,
+ 0xE8,
+ 0xDD,
+ 0x74,
+ 0x1F,
+ 0x4B,
+ 0xBD,
+ 0x8B,
+ 0x8A,
+ 0x70,
+ 0x3E,
+ 0xB5,
+ 0x66,
+ 0x48,
+ 0x03,
+ 0xF6,
+ 0x0E,
+ 0x61,
+ 0x35,
+ 0x57,
+ 0xB9,
+ 0x86,
+ 0xC1,
+ 0x1D,
+ 0x9E,
+ 0xE1,
+ 0xF8,
+ 0x98,
+ 0x11,
+ 0x69,
+ 0xD9,
+ 0x8E,
+ 0x94,
+ 0x9B,
+ 0x1E,
+ 0x87,
+ 0xE9,
+ 0xCE,
+ 0x55,
+ 0x28,
+ 0xDF,
+ 0x8C,
+ 0xA1,
+ 0x89,
+ 0x0D,
+ 0xBF,
+ 0xE6,
+ 0x42,
+ 0x68,
+ 0x41,
+ 0x99,
+ 0x2D,
+ 0x0F,
+ 0xB0,
+ 0x54,
+ 0xBB,
+ 0x16,
+ ]
# Rijndael Inverted S-box
- rsbox = [0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3,
- 0x9e, 0x81, 0xf3, 0xd7, 0xfb, 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f,
- 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb, 0x54,
- 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b,
- 0x42, 0xfa, 0xc3, 0x4e, 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24,
- 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25, 0x72, 0xf8,
- 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d,
- 0x65, 0xb6, 0x92, 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda,
- 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84, 0x90, 0xd8, 0xab,
- 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3,
- 0x45, 0x06, 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1,
- 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b, 0x3a, 0x91, 0x11, 0x41,
- 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6,
- 0x73, 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9,
- 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e, 0x47, 0xf1, 0x1a, 0x71, 0x1d,
- 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
- 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0,
- 0xfe, 0x78, 0xcd, 0x5a, 0xf4, 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07,
- 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f, 0x60,
- 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f,
- 0x93, 0xc9, 0x9c, 0xef, 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5,
- 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61, 0x17, 0x2b,
- 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55,
- 0x21, 0x0c, 0x7d]
+ rsbox = [
+ 0x52,
+ 0x09,
+ 0x6A,
+ 0xD5,
+ 0x30,
+ 0x36,
+ 0xA5,
+ 0x38,
+ 0xBF,
+ 0x40,
+ 0xA3,
+ 0x9E,
+ 0x81,
+ 0xF3,
+ 0xD7,
+ 0xFB,
+ 0x7C,
+ 0xE3,
+ 0x39,
+ 0x82,
+ 0x9B,
+ 0x2F,
+ 0xFF,
+ 0x87,
+ 0x34,
+ 0x8E,
+ 0x43,
+ 0x44,
+ 0xC4,
+ 0xDE,
+ 0xE9,
+ 0xCB,
+ 0x54,
+ 0x7B,
+ 0x94,
+ 0x32,
+ 0xA6,
+ 0xC2,
+ 0x23,
+ 0x3D,
+ 0xEE,
+ 0x4C,
+ 0x95,
+ 0x0B,
+ 0x42,
+ 0xFA,
+ 0xC3,
+ 0x4E,
+ 0x08,
+ 0x2E,
+ 0xA1,
+ 0x66,
+ 0x28,
+ 0xD9,
+ 0x24,
+ 0xB2,
+ 0x76,
+ 0x5B,
+ 0xA2,
+ 0x49,
+ 0x6D,
+ 0x8B,
+ 0xD1,
+ 0x25,
+ 0x72,
+ 0xF8,
+ 0xF6,
+ 0x64,
+ 0x86,
+ 0x68,
+ 0x98,
+ 0x16,
+ 0xD4,
+ 0xA4,
+ 0x5C,
+ 0xCC,
+ 0x5D,
+ 0x65,
+ 0xB6,
+ 0x92,
+ 0x6C,
+ 0x70,
+ 0x48,
+ 0x50,
+ 0xFD,
+ 0xED,
+ 0xB9,
+ 0xDA,
+ 0x5E,
+ 0x15,
+ 0x46,
+ 0x57,
+ 0xA7,
+ 0x8D,
+ 0x9D,
+ 0x84,
+ 0x90,
+ 0xD8,
+ 0xAB,
+ 0x00,
+ 0x8C,
+ 0xBC,
+ 0xD3,
+ 0x0A,
+ 0xF7,
+ 0xE4,
+ 0x58,
+ 0x05,
+ 0xB8,
+ 0xB3,
+ 0x45,
+ 0x06,
+ 0xD0,
+ 0x2C,
+ 0x1E,
+ 0x8F,
+ 0xCA,
+ 0x3F,
+ 0x0F,
+ 0x02,
+ 0xC1,
+ 0xAF,
+ 0xBD,
+ 0x03,
+ 0x01,
+ 0x13,
+ 0x8A,
+ 0x6B,
+ 0x3A,
+ 0x91,
+ 0x11,
+ 0x41,
+ 0x4F,
+ 0x67,
+ 0xDC,
+ 0xEA,
+ 0x97,
+ 0xF2,
+ 0xCF,
+ 0xCE,
+ 0xF0,
+ 0xB4,
+ 0xE6,
+ 0x73,
+ 0x96,
+ 0xAC,
+ 0x74,
+ 0x22,
+ 0xE7,
+ 0xAD,
+ 0x35,
+ 0x85,
+ 0xE2,
+ 0xF9,
+ 0x37,
+ 0xE8,
+ 0x1C,
+ 0x75,
+ 0xDF,
+ 0x6E,
+ 0x47,
+ 0xF1,
+ 0x1A,
+ 0x71,
+ 0x1D,
+ 0x29,
+ 0xC5,
+ 0x89,
+ 0x6F,
+ 0xB7,
+ 0x62,
+ 0x0E,
+ 0xAA,
+ 0x18,
+ 0xBE,
+ 0x1B,
+ 0xFC,
+ 0x56,
+ 0x3E,
+ 0x4B,
+ 0xC6,
+ 0xD2,
+ 0x79,
+ 0x20,
+ 0x9A,
+ 0xDB,
+ 0xC0,
+ 0xFE,
+ 0x78,
+ 0xCD,
+ 0x5A,
+ 0xF4,
+ 0x1F,
+ 0xDD,
+ 0xA8,
+ 0x33,
+ 0x88,
+ 0x07,
+ 0xC7,
+ 0x31,
+ 0xB1,
+ 0x12,
+ 0x10,
+ 0x59,
+ 0x27,
+ 0x80,
+ 0xEC,
+ 0x5F,
+ 0x60,
+ 0x51,
+ 0x7F,
+ 0xA9,
+ 0x19,
+ 0xB5,
+ 0x4A,
+ 0x0D,
+ 0x2D,
+ 0xE5,
+ 0x7A,
+ 0x9F,
+ 0x93,
+ 0xC9,
+ 0x9C,
+ 0xEF,
+ 0xA0,
+ 0xE0,
+ 0x3B,
+ 0x4D,
+ 0xAE,
+ 0x2A,
+ 0xF5,
+ 0xB0,
+ 0xC8,
+ 0xEB,
+ 0xBB,
+ 0x3C,
+ 0x83,
+ 0x53,
+ 0x99,
+ 0x61,
+ 0x17,
+ 0x2B,
+ 0x04,
+ 0x7E,
+ 0xBA,
+ 0x77,
+ 0xD6,
+ 0x26,
+ 0xE1,
+ 0x69,
+ 0x14,
+ 0x63,
+ 0x55,
+ 0x21,
+ 0x0C,
+ 0x7D,
+ ]
# Rijndael Rcon
- Rcon = [0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36,
- 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97,
- 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72,
- 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66,
- 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04,
- 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d,
- 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3,
- 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61,
- 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a,
- 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40,
- 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc,
- 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5,
- 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a,
- 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d,
- 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c,
- 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35,
- 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4,
- 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc,
- 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08,
- 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a,
- 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d,
- 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2,
- 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74,
- 0xe8, 0xcb]
+ Rcon = [
+ 0x8D,
+ 0x01,
+ 0x02,
+ 0x04,
+ 0x08,
+ 0x10,
+ 0x20,
+ 0x40,
+ 0x80,
+ 0x1B,
+ 0x36,
+ 0x6C,
+ 0xD8,
+ 0xAB,
+ 0x4D,
+ 0x9A,
+ 0x2F,
+ 0x5E,
+ 0xBC,
+ 0x63,
+ 0xC6,
+ 0x97,
+ 0x35,
+ 0x6A,
+ 0xD4,
+ 0xB3,
+ 0x7D,
+ 0xFA,
+ 0xEF,
+ 0xC5,
+ 0x91,
+ 0x39,
+ 0x72,
+ 0xE4,
+ 0xD3,
+ 0xBD,
+ 0x61,
+ 0xC2,
+ 0x9F,
+ 0x25,
+ 0x4A,
+ 0x94,
+ 0x33,
+ 0x66,
+ 0xCC,
+ 0x83,
+ 0x1D,
+ 0x3A,
+ 0x74,
+ 0xE8,
+ 0xCB,
+ 0x8D,
+ 0x01,
+ 0x02,
+ 0x04,
+ 0x08,
+ 0x10,
+ 0x20,
+ 0x40,
+ 0x80,
+ 0x1B,
+ 0x36,
+ 0x6C,
+ 0xD8,
+ 0xAB,
+ 0x4D,
+ 0x9A,
+ 0x2F,
+ 0x5E,
+ 0xBC,
+ 0x63,
+ 0xC6,
+ 0x97,
+ 0x35,
+ 0x6A,
+ 0xD4,
+ 0xB3,
+ 0x7D,
+ 0xFA,
+ 0xEF,
+ 0xC5,
+ 0x91,
+ 0x39,
+ 0x72,
+ 0xE4,
+ 0xD3,
+ 0xBD,
+ 0x61,
+ 0xC2,
+ 0x9F,
+ 0x25,
+ 0x4A,
+ 0x94,
+ 0x33,
+ 0x66,
+ 0xCC,
+ 0x83,
+ 0x1D,
+ 0x3A,
+ 0x74,
+ 0xE8,
+ 0xCB,
+ 0x8D,
+ 0x01,
+ 0x02,
+ 0x04,
+ 0x08,
+ 0x10,
+ 0x20,
+ 0x40,
+ 0x80,
+ 0x1B,
+ 0x36,
+ 0x6C,
+ 0xD8,
+ 0xAB,
+ 0x4D,
+ 0x9A,
+ 0x2F,
+ 0x5E,
+ 0xBC,
+ 0x63,
+ 0xC6,
+ 0x97,
+ 0x35,
+ 0x6A,
+ 0xD4,
+ 0xB3,
+ 0x7D,
+ 0xFA,
+ 0xEF,
+ 0xC5,
+ 0x91,
+ 0x39,
+ 0x72,
+ 0xE4,
+ 0xD3,
+ 0xBD,
+ 0x61,
+ 0xC2,
+ 0x9F,
+ 0x25,
+ 0x4A,
+ 0x94,
+ 0x33,
+ 0x66,
+ 0xCC,
+ 0x83,
+ 0x1D,
+ 0x3A,
+ 0x74,
+ 0xE8,
+ 0xCB,
+ 0x8D,
+ 0x01,
+ 0x02,
+ 0x04,
+ 0x08,
+ 0x10,
+ 0x20,
+ 0x40,
+ 0x80,
+ 0x1B,
+ 0x36,
+ 0x6C,
+ 0xD8,
+ 0xAB,
+ 0x4D,
+ 0x9A,
+ 0x2F,
+ 0x5E,
+ 0xBC,
+ 0x63,
+ 0xC6,
+ 0x97,
+ 0x35,
+ 0x6A,
+ 0xD4,
+ 0xB3,
+ 0x7D,
+ 0xFA,
+ 0xEF,
+ 0xC5,
+ 0x91,
+ 0x39,
+ 0x72,
+ 0xE4,
+ 0xD3,
+ 0xBD,
+ 0x61,
+ 0xC2,
+ 0x9F,
+ 0x25,
+ 0x4A,
+ 0x94,
+ 0x33,
+ 0x66,
+ 0xCC,
+ 0x83,
+ 0x1D,
+ 0x3A,
+ 0x74,
+ 0xE8,
+ 0xCB,
+ 0x8D,
+ 0x01,
+ 0x02,
+ 0x04,
+ 0x08,
+ 0x10,
+ 0x20,
+ 0x40,
+ 0x80,
+ 0x1B,
+ 0x36,
+ 0x6C,
+ 0xD8,
+ 0xAB,
+ 0x4D,
+ 0x9A,
+ 0x2F,
+ 0x5E,
+ 0xBC,
+ 0x63,
+ 0xC6,
+ 0x97,
+ 0x35,
+ 0x6A,
+ 0xD4,
+ 0xB3,
+ 0x7D,
+ 0xFA,
+ 0xEF,
+ 0xC5,
+ 0x91,
+ 0x39,
+ 0x72,
+ 0xE4,
+ 0xD3,
+ 0xBD,
+ 0x61,
+ 0xC2,
+ 0x9F,
+ 0x25,
+ 0x4A,
+ 0x94,
+ 0x33,
+ 0x66,
+ 0xCC,
+ 0x83,
+ 0x1D,
+ 0x3A,
+ 0x74,
+ 0xE8,
+ 0xCB,
+ ]
def __getSBoxValue(self, num):
"""
Private method to retrieve a given S-Box value.
-
+
@param num position of the value (integer)
@return value of the S-Box (integer)
"""
@@ -159,7 +859,7 @@
def __getSBoxInvert(self, num):
"""
Private method to retrieve a given Inverted S-Box value.
-
+
@param num position of the value (integer)
@return value of the Inverted S-Box (integer)
"""
@@ -171,7 +871,7 @@
Rotate the data word eight bits to the left: eg,
rotate(1d2c3a4f) == 2c3a4f1d.
-
+
@param data data of size 4 (bytearray)
@return rotated data (bytearray)
"""
@@ -180,7 +880,7 @@
def __getRconValue(self, num):
"""
Private method to retrieve a given Rcon value.
-
+
@param num position of the value (integer)
@return Rcon value (integer)
"""
@@ -189,7 +889,7 @@
def __core(self, data, iteration):
"""
Private method performing the key schedule core operation.
-
+
@param data data to operate on (bytearray)
@param iteration iteration counter (integer)
@return modified data (bytearray)
@@ -209,7 +909,7 @@
Private method performing Rijndael's key expansion.
Expands a 128, 192 or 256 bit key into a 176, 208 or 240 bit key.
-
+
@param key key to be expanded (bytes or bytearray)
@param size size of the key in bytes (16, 24 or 32)
@param expandedKeySize size of the expanded key (integer)
@@ -227,7 +927,7 @@
while currentSize < expandedKeySize:
# assign the previous 4 bytes to the temporary value t
- t = expandedKey[currentSize - 4:currentSize]
+ t = expandedKey[currentSize - 4 : currentSize]
# every 16, 24, 32 bytes we apply the core schedule to t
# and increment rconIteration afterwards
@@ -235,10 +935,7 @@
t = self.__core(t, rconIteration)
rconIteration += 1
# For 256-bit keys, we add an extra sbox to the calculation
- if (
- size == self.KeySize["SIZE_256"] and
- ((currentSize % size) == 16)
- ):
+ if size == self.KeySize["SIZE_256"] and ((currentSize % size) == 16):
for ll in range(4):
t[ll] = self.__getSBoxValue(t[ll])
@@ -246,17 +943,15 @@
# expanded key. This becomes the next four bytes in the expanded
# key.
for m in range(4):
- expandedKey[currentSize] = (
- expandedKey[currentSize - size] ^ t[m]
- )
- currentSize += 1 # __IGNORE_WARNING_Y113__
+ expandedKey[currentSize] = expandedKey[currentSize - size] ^ t[m]
+ currentSize += 1 # __IGNORE_WARNING_Y113__
return expandedKey
def __addRoundKey(self, state, roundKey):
"""
Private method to add (XORs) the round key to the state.
-
+
@param state state to be changed (bytearray)
@param roundKey key to be used for the modification (bytearray)
@return modified state (bytearray)
@@ -269,7 +964,7 @@
def __createRoundKey(self, expandedKey, roundKeyPointer):
"""
Private method to create a round key.
-
+
@param expandedKey expanded key to be used (bytearray)
@param roundKeyPointer position within the expanded key (integer)
@return round key (bytearray)
@@ -284,7 +979,7 @@
"""
Private method to perform a Galois multiplication of 8 bit characters
a and b.
-
+
@param a first factor (byte)
@param b second factor (byte)
@return result (byte)
@@ -298,7 +993,7 @@
# keep a 8 bit
a &= 0xFF
if hi_bit_set:
- a ^= 0x1b
+ a ^= 0x1B
b >>= 1
return p
@@ -306,7 +1001,7 @@
"""
Private method to substitute all the values from the state with the
value in the SBox using the state value as index for the SBox.
-
+
@param state state to be worked on (bytearray)
@param isInv flag indicating an inverse operation (boolean)
@return modified state (bytearray)
@@ -321,7 +1016,7 @@
"""
Private method to iterate over the 4 rows and call __shiftRow() with
that row.
-
+
@param state state to be worked on (bytearray)
@param isInv flag indicating an inverse operation (boolean)
@return modified state (bytearray)
@@ -334,7 +1029,7 @@
def __shiftRow(self, state, statePointer, nbr, isInv):
"""
Private method to shift the bytes of a row to the left.
-
+
@param state state to be worked on (bytearray)
@param statePointer index into the state (integer)
@param nbr number of positions to shift (integer)
@@ -344,21 +1039,21 @@
state = state[:]
for _ in range(nbr):
if isInv:
- state[statePointer:statePointer + 4] = (
- state[statePointer + 3:statePointer + 4] +
- state[statePointer:statePointer + 3]
+ state[statePointer : statePointer + 4] = (
+ state[statePointer + 3 : statePointer + 4]
+ + state[statePointer : statePointer + 3]
)
else:
- state[statePointer:statePointer + 4] = (
- state[statePointer + 1:statePointer + 4] +
- state[statePointer:statePointer + 1]
+ state[statePointer : statePointer + 4] = (
+ state[statePointer + 1 : statePointer + 4]
+ + state[statePointer : statePointer + 1]
)
return state
def __mixColumns(self, state, isInv):
"""
Private method to perform a galois multiplication of the 4x4 matrix.
-
+
@param state state to be worked on (bytearray)
@param isInv flag indicating an inverse operation (boolean)
@return modified state (bytearray)
@@ -367,11 +1062,11 @@
# iterate over the 4 columns
for i in range(4):
# construct one column by slicing over the 4 rows
- column = state[i:i + 16:4]
+ column = state[i : i + 16 : 4]
# apply the __mixColumn on one column
column = self.__mixColumn(column, isInv)
# put the values back into the state
- state[i:i + 16:4] = column
+ state[i : i + 16 : 4] = column
return state
@@ -380,7 +1075,7 @@
"""
Private method to perform a galois multiplication of 1 column the
4x4 matrix.
-
+
@param column column to be worked on (bytearray)
@param isInv flag indicating an inverse operation (boolean)
@return modified column (bytearray)
@@ -391,20 +1086,28 @@
g = self.__galois_multiplication
column[0] = (
- g(cpy[0], mult[0]) ^ g(cpy[3], mult[1]) ^
- g(cpy[2], mult[2]) ^ g(cpy[1], mult[3])
+ g(cpy[0], mult[0])
+ ^ g(cpy[3], mult[1])
+ ^ g(cpy[2], mult[2])
+ ^ g(cpy[1], mult[3])
)
column[1] = (
- g(cpy[1], mult[0]) ^ g(cpy[0], mult[1]) ^
- g(cpy[3], mult[2]) ^ g(cpy[2], mult[3])
+ g(cpy[1], mult[0])
+ ^ g(cpy[0], mult[1])
+ ^ g(cpy[3], mult[2])
+ ^ g(cpy[2], mult[3])
)
column[2] = (
- g(cpy[2], mult[0]) ^ g(cpy[1], mult[1]) ^
- g(cpy[0], mult[2]) ^ g(cpy[3], mult[3])
+ g(cpy[2], mult[0])
+ ^ g(cpy[1], mult[1])
+ ^ g(cpy[0], mult[2])
+ ^ g(cpy[3], mult[3])
)
column[3] = (
- g(cpy[3], mult[0]) ^ g(cpy[2], mult[1]) ^
- g(cpy[1], mult[2]) ^ g(cpy[0], mult[3])
+ g(cpy[3], mult[0])
+ ^ g(cpy[2], mult[1])
+ ^ g(cpy[1], mult[2])
+ ^ g(cpy[0], mult[3])
)
return column
@@ -412,7 +1115,7 @@
"""
Private method to apply the 4 operations of the forward round in
sequence.
-
+
@param state state to be worked on (bytearray)
@param roundKey round key to be used (bytearray)
@return modified state (bytearray)
@@ -427,7 +1130,7 @@
"""
Private method to apply the 4 operations of the inverse round in
sequence.
-
+
@param state state to be worked on (bytearray)
@param roundKey round key to be used (bytearray)
@return modified state (bytearray)
@@ -441,60 +1144,60 @@
def __aes_main(self, state, expandedKey, nbrRounds):
"""
Private method to do the AES encryption for one round.
-
+
Perform the initial operations, the standard round, and the
final operations of the forward AES, creating a round key for
each round.
-
+
+ @param state state to be worked on (bytearray)
+ @param expandedKey expanded key to be used (bytearray)
+ @param nbrRounds number of rounds to be done (integer)
+ @return modified state (bytearray)
+ """
+ state = self.__addRoundKey(state, self.__createRoundKey(expandedKey, 0))
+ i = 1
+ while i < nbrRounds:
+ state = self.__aes_round(state, self.__createRoundKey(expandedKey, 16 * i))
+ i += 1
+ state = self.__subBytes(state, False)
+ state = self.__shiftRows(state, False)
+ state = self.__addRoundKey(
+ state, self.__createRoundKey(expandedKey, 16 * nbrRounds)
+ )
+ return state
+
+ def __aes_invMain(self, state, expandedKey, nbrRounds):
+ """
+ Private method to do the inverse AES encryption for one round.
+
+ Perform the initial operations, the standard round, and the
+ final operations of the inverse AES, creating a round key for
+ each round.
+
@param state state to be worked on (bytearray)
@param expandedKey expanded key to be used (bytearray)
@param nbrRounds number of rounds to be done (integer)
@return modified state (bytearray)
"""
state = self.__addRoundKey(
- state, self.__createRoundKey(expandedKey, 0))
- i = 1
- while i < nbrRounds:
- state = self.__aes_round(
- state, self.__createRoundKey(expandedKey, 16 * i))
- i += 1
- state = self.__subBytes(state, False)
- state = self.__shiftRows(state, False)
- state = self.__addRoundKey(
- state, self.__createRoundKey(expandedKey, 16 * nbrRounds))
- return state
-
- def __aes_invMain(self, state, expandedKey, nbrRounds):
- """
- Private method to do the inverse AES encryption for one round.
-
- Perform the initial operations, the standard round, and the
- final operations of the inverse AES, creating a round key for
- each round.
-
- @param state state to be worked on (bytearray)
- @param expandedKey expanded key to be used (bytearray)
- @param nbrRounds number of rounds to be done (integer)
- @return modified state (bytearray)
- """
- state = self.__addRoundKey(
- state, self.__createRoundKey(expandedKey, 16 * nbrRounds))
+ state, self.__createRoundKey(expandedKey, 16 * nbrRounds)
+ )
i = nbrRounds - 1
while i > 0:
state = self.__aes_invRound(
- state, self.__createRoundKey(expandedKey, 16 * i))
+ state, self.__createRoundKey(expandedKey, 16 * i)
+ )
i -= 1
state = self.__shiftRows(state, True)
state = self.__subBytes(state, True)
- state = self.__addRoundKey(
- state, self.__createRoundKey(expandedKey, 0))
+ state = self.__addRoundKey(state, self.__createRoundKey(expandedKey, 0))
return state
def encrypt(self, iput, key, size):
"""
Public method to encrypt a 128 bit input block against the given key
of size specified.
-
+
@param iput input data (bytearray)
@param key key to be used (bytes or bytearray)
@param size key size (16, 24 or 32)
@@ -503,7 +1206,7 @@
"""
if size not in self.KeySize.values():
raise ValueError("Wrong key size given ({0}).".format(size))
-
+
output = bytearray(16)
# the number of rounds
nbrRounds = 0
@@ -552,7 +1255,7 @@
"""
Public method to decrypt a 128 bit input block against the given key
of size specified.
-
+
@param iput input data (bytearray)
@param key key to be used (bytes or bytearray)
@param size key size (16, 24 or 32)
@@ -561,14 +1264,14 @@
"""
if size not in self.KeySize.values():
raise ValueError("Wrong key size given ({0}).".format(size))
-
+
output = bytearray(16)
# the number of rounds
nbrRounds = 0
# the 128 bit block to decode
block = bytearray(16)
# set the number of rounds
-
+
if size == self.KeySize["SIZE_128"]:
nbrRounds = 10
elif size == self.KeySize["SIZE_192"]:
@@ -607,6 +1310,7 @@
"""
Class implementing the different AES mode of operations.
"""
+
aes = AES()
# structure of supported modes of operation
@@ -619,7 +1323,7 @@
def __extractBytes(self, inputData, start, end, mode):
"""
Private method to extract a range of bytes from the input.
-
+
@param inputData input data (bytes)
@param start start index (integer)
@param end end index (integer)
@@ -628,8 +1332,7 @@
"""
if end - start > 16:
end = start + 16
- ar = (bytearray(16) if mode == self.ModeOfOperation["CBC"]
- else bytearray())
+ ar = bytearray(16) if mode == self.ModeOfOperation["CBC"] else bytearray()
i = start
j = 0
@@ -644,7 +1347,7 @@
def encrypt(self, inputData, mode, key, size, IV):
"""
Public method to perform the encryption operation.
-
+
@param inputData data to be encrypted (bytes)
@param mode mode of operation (0, 1 or 2)
@param key key to be used (bytes)
@@ -655,8 +1358,7 @@
@exception ValueError key size is invalid or decrypted data is invalid
"""
if len(key) % size:
- raise ValueError("Illegal size ({0}) for key '{1}'.".format(
- size, key))
+ raise ValueError("Illegal size ({0}) for key '{1}'.".format(size, key))
if len(IV) % 16:
raise ValueError("IV is not a multiple of 16.")
# the AES input/output
@@ -733,7 +1435,7 @@
def decrypt(self, cipherIn, originalsize, mode, key, size, IV):
"""
Public method to perform the decryption operation.
-
+
@param cipherIn data to be decrypted (bytes)
@param originalsize unencrypted string length (required for CBC)
(integer)
@@ -745,8 +1447,7 @@
@exception ValueError key size is invalid or decrypted data is invalid
"""
if len(key) % size:
- raise ValueError("Illegal size ({0}) for key '{1}'.".format(
- size, key))
+ raise ValueError("Illegal size ({0}) for key '{1}'.".format(size, key))
if len(IV) % 16:
raise ValueError("IV is not a multiple of 16.")
# the AES input/output
@@ -822,7 +1523,7 @@
def encryptData(key, data, mode=AESModeOfOperation.ModeOfOperation["CBC"]):
"""
Module function to encrypt the given data with the given key.
-
+
@param key key to be used for encryption (bytes)
@param data data to be encrypted (bytes)
@param mode mode of operations (0, 1 or 2)
@@ -834,7 +1535,7 @@
data = append_PKCS7_padding(data)
keysize = len(key)
if keysize not in AES.KeySize.values():
- raise ValueError('invalid key size: {0}'.format(keysize))
+ raise ValueError("invalid key size: {0}".format(keysize))
# create a new iv using random data
iv = bytearray([i for i in os.urandom(16)])
moo = AESModeOfOperation()
@@ -848,7 +1549,7 @@
def decryptData(key, data, mode=AESModeOfOperation.ModeOfOperation["CBC"]):
"""
Module function to decrypt the given data with the given key.
-
+
@param key key to be used for decryption (bytes)
@param data data to be decrypted (with initialization vector prepended)
(bytes)
@@ -859,7 +1560,7 @@
key = bytearray(key)
keysize = len(key)
if keysize not in AES.KeySize.values():
- raise ValueError('invalid key size: {0}'.format(keysize))
+ raise ValueError("invalid key size: {0}".format(keysize))
# iv is first 16 bytes
iv = bytearray(data[:16])
data = bytearray(data[16:])
