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@ -41,78 +41,79 @@ static uint8 pad2[48] =
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};
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static uint8
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fips_reverse_table[256] = {
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0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
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0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
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0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
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0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
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0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
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0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
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0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
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0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
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0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
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0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
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0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
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0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
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0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
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0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
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0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
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0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
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0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
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0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
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0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
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0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
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0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
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0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
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0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
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0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
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0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
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0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
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0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
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0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
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0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
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0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
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0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
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0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff,
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fips_reverse_table[256] =
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{
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0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
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0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
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0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
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0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
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0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
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0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
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0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
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0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
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0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
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0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
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0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
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0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
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0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
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0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
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0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
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0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
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0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
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0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
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0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
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0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
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0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
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0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
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0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
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0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
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0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
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0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
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0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
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0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
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0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
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0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
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0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
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0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
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};
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static uint8
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fips_oddparity_table[256] = {
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0x01, 0x01, 0x02, 0x02, 0x04, 0x04, 0x07, 0x07,
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0x08, 0x08, 0x0b, 0x0b, 0x0d, 0x0d, 0x0e, 0x0e,
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0x10, 0x10, 0x13, 0x13, 0x15, 0x15, 0x16, 0x16,
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0x19, 0x19, 0x1a, 0x1a, 0x1c, 0x1c, 0x1f, 0x1f,
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0x20, 0x20, 0x23, 0x23, 0x25, 0x25, 0x26, 0x26,
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0x29, 0x29, 0x2a, 0x2a, 0x2c, 0x2c, 0x2f, 0x2f,
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0x31, 0x31, 0x32, 0x32, 0x34, 0x34, 0x37, 0x37,
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0x38, 0x38, 0x3b, 0x3b, 0x3d, 0x3d, 0x3e, 0x3e,
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0x40, 0x40, 0x43, 0x43, 0x45, 0x45, 0x46, 0x46,
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0x49, 0x49, 0x4a, 0x4a, 0x4c, 0x4c, 0x4f, 0x4f,
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0x51, 0x51, 0x52, 0x52, 0x54, 0x54, 0x57, 0x57,
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0x58, 0x58, 0x5b, 0x5b, 0x5d, 0x5d, 0x5e, 0x5e,
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0x61, 0x61, 0x62, 0x62, 0x64, 0x64, 0x67, 0x67,
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0x68, 0x68, 0x6b, 0x6b, 0x6d, 0x6d, 0x6e, 0x6e,
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0x70, 0x70, 0x73, 0x73, 0x75, 0x75, 0x76, 0x76,
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0x79, 0x79, 0x7a, 0x7a, 0x7c, 0x7c, 0x7f, 0x7f,
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0x80, 0x80, 0x83, 0x83, 0x85, 0x85, 0x86, 0x86,
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0x89, 0x89, 0x8a, 0x8a, 0x8c, 0x8c, 0x8f, 0x8f,
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0x91, 0x91, 0x92, 0x92, 0x94, 0x94, 0x97, 0x97,
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0x98, 0x98, 0x9b, 0x9b, 0x9d, 0x9d, 0x9e, 0x9e,
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0xa1, 0xa1, 0xa2, 0xa2, 0xa4, 0xa4, 0xa7, 0xa7,
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0xa8, 0xa8, 0xab, 0xab, 0xad, 0xad, 0xae, 0xae,
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0xb0, 0xb0, 0xb3, 0xb3, 0xb5, 0xb5, 0xb6, 0xb6,
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0xb9, 0xb9, 0xba, 0xba, 0xbc, 0xbc, 0xbf, 0xbf,
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0xc1, 0xc1, 0xc2, 0xc2, 0xc4, 0xc4, 0xc7, 0xc7,
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0xc8, 0xc8, 0xcb, 0xcb, 0xcd, 0xcd, 0xce, 0xce,
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0xd0, 0xd0, 0xd3, 0xd3, 0xd5, 0xd5, 0xd6, 0xd6,
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0xd9, 0xd9, 0xda, 0xda, 0xdc, 0xdc, 0xdf, 0xdf,
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0xe0, 0xe0, 0xe3, 0xe3, 0xe5, 0xe5, 0xe6, 0xe6,
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0xe9, 0xe9, 0xea, 0xea, 0xec, 0xec, 0xef, 0xef,
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0xf1, 0xf1, 0xf2, 0xf2, 0xf4, 0xf4, 0xf7, 0xf7,
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0xf8, 0xf8, 0xfb, 0xfb, 0xfd, 0xfd, 0xfe, 0xfe,
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fips_oddparity_table[256] =
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{
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0x01, 0x01, 0x02, 0x02, 0x04, 0x04, 0x07, 0x07,
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0x08, 0x08, 0x0b, 0x0b, 0x0d, 0x0d, 0x0e, 0x0e,
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0x10, 0x10, 0x13, 0x13, 0x15, 0x15, 0x16, 0x16,
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0x19, 0x19, 0x1a, 0x1a, 0x1c, 0x1c, 0x1f, 0x1f,
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0x20, 0x20, 0x23, 0x23, 0x25, 0x25, 0x26, 0x26,
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0x29, 0x29, 0x2a, 0x2a, 0x2c, 0x2c, 0x2f, 0x2f,
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0x31, 0x31, 0x32, 0x32, 0x34, 0x34, 0x37, 0x37,
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0x38, 0x38, 0x3b, 0x3b, 0x3d, 0x3d, 0x3e, 0x3e,
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0x40, 0x40, 0x43, 0x43, 0x45, 0x45, 0x46, 0x46,
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0x49, 0x49, 0x4a, 0x4a, 0x4c, 0x4c, 0x4f, 0x4f,
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0x51, 0x51, 0x52, 0x52, 0x54, 0x54, 0x57, 0x57,
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0x58, 0x58, 0x5b, 0x5b, 0x5d, 0x5d, 0x5e, 0x5e,
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0x61, 0x61, 0x62, 0x62, 0x64, 0x64, 0x67, 0x67,
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0x68, 0x68, 0x6b, 0x6b, 0x6d, 0x6d, 0x6e, 0x6e,
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0x70, 0x70, 0x73, 0x73, 0x75, 0x75, 0x76, 0x76,
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0x79, 0x79, 0x7a, 0x7a, 0x7c, 0x7c, 0x7f, 0x7f,
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0x80, 0x80, 0x83, 0x83, 0x85, 0x85, 0x86, 0x86,
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0x89, 0x89, 0x8a, 0x8a, 0x8c, 0x8c, 0x8f, 0x8f,
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0x91, 0x91, 0x92, 0x92, 0x94, 0x94, 0x97, 0x97,
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0x98, 0x98, 0x9b, 0x9b, 0x9d, 0x9d, 0x9e, 0x9e,
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0xa1, 0xa1, 0xa2, 0xa2, 0xa4, 0xa4, 0xa7, 0xa7,
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0xa8, 0xa8, 0xab, 0xab, 0xad, 0xad, 0xae, 0xae,
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0xb0, 0xb0, 0xb3, 0xb3, 0xb5, 0xb5, 0xb6, 0xb6,
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0xb9, 0xb9, 0xba, 0xba, 0xbc, 0xbc, 0xbf, 0xbf,
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0xc1, 0xc1, 0xc2, 0xc2, 0xc4, 0xc4, 0xc7, 0xc7,
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0xc8, 0xc8, 0xcb, 0xcb, 0xcd, 0xcd, 0xce, 0xce,
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0xd0, 0xd0, 0xd3, 0xd3, 0xd5, 0xd5, 0xd6, 0xd6,
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0xd9, 0xd9, 0xda, 0xda, 0xdc, 0xdc, 0xdf, 0xdf,
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0xe0, 0xe0, 0xe3, 0xe3, 0xe5, 0xe5, 0xe6, 0xe6,
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0xe9, 0xe9, 0xea, 0xea, 0xec, 0xec, 0xef, 0xef,
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0xf1, 0xf1, 0xf2, 0xf2, 0xf4, 0xf4, 0xf7, 0xf7,
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0xf8, 0xf8, 0xfb, 0xfb, 0xfd, 0xfd, 0xfe, 0xfe
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};
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static void security_salted_hash(uint8* salt, uint8* input, int length, uint8* salt1, uint8* salt2, uint8* output)
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{
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CryptoMd5 md5;
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@ -264,49 +265,49 @@ static void security_X(uint8* master_secret, uint8* client_random, uint8* server
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security_premaster_hash("ZZZ", 3, master_secret, client_random, server_random, &output[32]);
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}
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static void
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fips_expand_key_bits(uint8 *in, uint8 *out)
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static void fips_expand_key_bits(uint8* in, uint8* out)
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{
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uint8 buf[21], c;
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int i, b, p, r;
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// reverse every byte in the key
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/* reverse every byte in the key */
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for (i = 0; i < 21; i++)
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buf[i] = fips_reverse_table[in[i]];
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// insert a zero-bit after every 7th bit
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/* insert a zero-bit after every 7th bit */
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for (i = 0, b = 0; i < 24; i++, b += 7)
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{
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p = b/8;
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r = b%8;
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p = b / 8;
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r = b % 8;
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if (r == 0)
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{
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out[i] = buf[p] & 0xfe;
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}
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else
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{
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// c is accumulator
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/* c is accumulator */
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c = buf[p] << r;
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c |= buf[p+1] >> (8-r);
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c |= buf[p + 1] >> (8 - r);
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out[i] = c & 0xfe;
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}
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}
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// reverse every byte
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// alter lsb so the byte has odd parity
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/* reverse every byte */
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/* alter lsb so the byte has odd parity */
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for (i = 0; i < 24; i++)
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out[i] = fips_oddparity_table[fips_reverse_table[out[i]]];
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}
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boolean security_establish_keys(uint8* client_random, rdpSettings* settings)
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boolean security_establish_keys(uint8* client_random, rdpRdp* rdp)
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{
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uint8 pre_master_secret[48];
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uint8 master_secret[48];
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uint8 session_key_blob[48];
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uint8* server_random;
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uint8 salt40[] = { 0xD1, 0x26, 0x9E };
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rdpSettings* settings;
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settings = rdp->settings;
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server_random = settings->server_random.data;
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if (settings->encryption_method == ENCRYPTION_METHOD_FIPS)
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@ -322,7 +323,7 @@ boolean security_establish_keys(uint8* client_random, rdpSettings* settings)
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crypto_sha1_final(sha1, client_encrypt_key_t);
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client_encrypt_key_t[20] = client_encrypt_key_t[0];
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fips_expand_key_bits(client_encrypt_key_t, settings->fips_encrypt_key);
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fips_expand_key_bits(client_encrypt_key_t, rdp->fips_encrypt_key);
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sha1 = crypto_sha1_init();
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crypto_sha1_update(sha1, client_random, 16);
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@ -330,12 +331,12 @@ boolean security_establish_keys(uint8* client_random, rdpSettings* settings)
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crypto_sha1_final(sha1, client_decrypt_key_t);
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client_decrypt_key_t[20] = client_decrypt_key_t[0];
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fips_expand_key_bits(client_decrypt_key_t, settings->fips_decrypt_key);
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fips_expand_key_bits(client_decrypt_key_t, rdp->fips_decrypt_key);
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sha1 = crypto_sha1_init();
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crypto_sha1_update(sha1, client_decrypt_key_t, 20);
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crypto_sha1_update(sha1, client_encrypt_key_t, 20);
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crypto_sha1_final(sha1, settings->fips_sign_key);
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crypto_sha1_final(sha1, rdp->fips_sign_key);
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}
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memcpy(pre_master_secret, client_random, 24);
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@ -344,25 +345,25 @@ boolean security_establish_keys(uint8* client_random, rdpSettings* settings)
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security_A(pre_master_secret, client_random, server_random, master_secret);
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security_X(master_secret, client_random, server_random, session_key_blob);
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memcpy(settings->sign_key, session_key_blob, 16);
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memcpy(rdp->sign_key, session_key_blob, 16);
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security_md5_16_32_32(&session_key_blob[16], client_random, server_random, settings->decrypt_key);
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security_md5_16_32_32(&session_key_blob[32], client_random, server_random, settings->encrypt_key);
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security_md5_16_32_32(&session_key_blob[16], client_random, server_random, rdp->decrypt_key);
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security_md5_16_32_32(&session_key_blob[32], client_random, server_random, rdp->encrypt_key);
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if (settings->encryption_method == 1) /* 40 and 56 bit */
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{
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memcpy(settings->sign_key, salt40, 3); /* TODO 56 bit */
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memcpy(settings->decrypt_key, salt40, 3); /* TODO 56 bit */
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memcpy(settings->encrypt_key, salt40, 3); /* TODO 56 bit */
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settings->rc4_key_len = 8;
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memcpy(rdp->sign_key, salt40, 3); /* TODO 56 bit */
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memcpy(rdp->decrypt_key, salt40, 3); /* TODO 56 bit */
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memcpy(rdp->encrypt_key, salt40, 3); /* TODO 56 bit */
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rdp->rc4_key_len = 8;
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}
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else if (settings->encryption_method == 2) /* 128 bit */
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{
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settings->rc4_key_len = 16;
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rdp->rc4_key_len = 16;
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}
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memcpy(settings->decrypt_update_key, settings->decrypt_key, 16);
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memcpy(settings->encrypt_update_key, settings->encrypt_key, 16);
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memcpy(rdp->decrypt_update_key, rdp->decrypt_key, 16);
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memcpy(rdp->encrypt_update_key, rdp->encrypt_key, 16);
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return True;
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}
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@ -401,9 +402,9 @@ boolean security_encrypt(uint8* data, int length, rdpRdp* rdp)
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{
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if (rdp->encrypt_use_count >= 4096)
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{
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security_key_update(rdp->settings->encrypt_key, rdp->settings->encrypt_update_key, rdp->settings->rc4_key_len);
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security_key_update(rdp->encrypt_key, rdp->encrypt_update_key, rdp->rc4_key_len);
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crypto_rc4_free(rdp->rc4_encrypt_key);
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rdp->rc4_encrypt_key = crypto_rc4_init(rdp->settings->encrypt_key, rdp->settings->rc4_key_len);
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rdp->rc4_encrypt_key = crypto_rc4_init(rdp->encrypt_key, rdp->rc4_key_len);
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rdp->encrypt_use_count = 0;
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}
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crypto_rc4(rdp->rc4_encrypt_key, length, data, data);
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@ -415,9 +416,9 @@ boolean security_decrypt(uint8* data, int length, rdpRdp* rdp)
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{
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if (rdp->decrypt_use_count >= 4096)
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{
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security_key_update(rdp->settings->decrypt_key, rdp->settings->decrypt_update_key, rdp->settings->rc4_key_len);
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security_key_update(rdp->decrypt_key, rdp->decrypt_update_key, rdp->rc4_key_len);
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crypto_rc4_free(rdp->rc4_decrypt_key);
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rdp->rc4_decrypt_key = crypto_rc4_init(rdp->settings->decrypt_key, rdp->settings->rc4_key_len);
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rdp->rc4_decrypt_key = crypto_rc4_init(rdp->decrypt_key, rdp->rc4_key_len);
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rdp->decrypt_use_count = 0;
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}
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crypto_rc4(rdp->rc4_decrypt_key, length, data, data);
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@ -432,7 +433,7 @@ void security_hmac_signature(uint8* data, int length, uint8* output, rdpRdp* rdp
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security_uint32_le(use_count_le, rdp->encrypt_use_count);
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crypto_hmac_sha1_init(rdp->fips_hmac, rdp->settings->fips_sign_key, 20);
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crypto_hmac_sha1_init(rdp->fips_hmac, rdp->fips_sign_key, 20);
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crypto_hmac_update(rdp->fips_hmac, data, length);
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crypto_hmac_update(rdp->fips_hmac, use_count_le, 4);
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crypto_hmac_final(rdp->fips_hmac, buf, 20);
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@ -460,7 +461,7 @@ boolean security_fips_check_signature(uint8* data, int length, uint8* sig, rdpRd
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security_uint32_le(use_count_le, rdp->decrypt_use_count);
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crypto_hmac_sha1_init(rdp->fips_hmac, rdp->settings->fips_sign_key, 20);
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crypto_hmac_sha1_init(rdp->fips_hmac, rdp->fips_sign_key, 20);
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crypto_hmac_update(rdp->fips_hmac, data, length);
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crypto_hmac_update(rdp->fips_hmac, use_count_le, 4);
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crypto_hmac_final(rdp->fips_hmac, buf, 20);
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@ -472,4 +473,3 @@ boolean security_fips_check_signature(uint8* data, int length, uint8* sig, rdpRd
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return True;
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}
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