diff options
Diffstat (limited to 'crypto/aria')
| -rw-r--r-- | crypto/aria/aria.c | 454 | ||||
| -rw-r--r-- | crypto/aria/build.info | 4 |
2 files changed, 458 insertions, 0 deletions
diff --git a/crypto/aria/aria.c b/crypto/aria/aria.c new file mode 100644 index 0000000000..7e17e30396 --- /dev/null +++ b/crypto/aria/aria.c @@ -0,0 +1,454 @@ +/* + * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +/* ==================================================================== + * Copyright (c) 2017 Oracle and/or its affiliates. All rights reserved. + */ + +#include <assert.h> +#include <openssl/e_os2.h> +#include <string.h> +#include "internal/aria.h" + +static const unsigned char sb1[256] = { + 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 +}; + +static const unsigned char sb2[256] = { + 0xe2, 0x4e, 0x54, 0xfc, 0x94, 0xc2, 0x4a, 0xcc, + 0x62, 0x0d, 0x6a, 0x46, 0x3c, 0x4d, 0x8b, 0xd1, + 0x5e, 0xfa, 0x64, 0xcb, 0xb4, 0x97, 0xbe, 0x2b, + 0xbc, 0x77, 0x2e, 0x03, 0xd3, 0x19, 0x59, 0xc1, + 0x1d, 0x06, 0x41, 0x6b, 0x55, 0xf0, 0x99, 0x69, + 0xea, 0x9c, 0x18, 0xae, 0x63, 0xdf, 0xe7, 0xbb, + 0x00, 0x73, 0x66, 0xfb, 0x96, 0x4c, 0x85, 0xe4, + 0x3a, 0x09, 0x45, 0xaa, 0x0f, 0xee, 0x10, 0xeb, + 0x2d, 0x7f, 0xf4, 0x29, 0xac, 0xcf, 0xad, 0x91, + 0x8d, 0x78, 0xc8, 0x95, 0xf9, 0x2f, 0xce, 0xcd, + 0x08, 0x7a, 0x88, 0x38, 0x5c, 0x83, 0x2a, 0x28, + 0x47, 0xdb, 0xb8, 0xc7, 0x93, 0xa4, 0x12, 0x53, + 0xff, 0x87, 0x0e, 0x31, 0x36, 0x21, 0x58, 0x48, + 0x01, 0x8e, 0x37, 0x74, 0x32, 0xca, 0xe9, 0xb1, + 0xb7, 0xab, 0x0c, 0xd7, 0xc4, 0x56, 0x42, 0x26, + 0x07, 0x98, 0x60, 0xd9, 0xb6, 0xb9, 0x11, 0x40, + 0xec, 0x20, 0x8c, 0xbd, 0xa0, 0xc9, 0x84, 0x04, + 0x49, 0x23, 0xf1, 0x4f, 0x50, 0x1f, 0x13, 0xdc, + 0xd8, 0xc0, 0x9e, 0x57, 0xe3, 0xc3, 0x7b, 0x65, + 0x3b, 0x02, 0x8f, 0x3e, 0xe8, 0x25, 0x92, 0xe5, + 0x15, 0xdd, 0xfd, 0x17, 0xa9, 0xbf, 0xd4, 0x9a, + 0x7e, 0xc5, 0x39, 0x67, 0xfe, 0x76, 0x9d, 0x43, + 0xa7, 0xe1, 0xd0, 0xf5, 0x68, 0xf2, 0x1b, 0x34, + 0x70, 0x05, 0xa3, 0x8a, 0xd5, 0x79, 0x86, 0xa8, + 0x30, 0xc6, 0x51, 0x4b, 0x1e, 0xa6, 0x27, 0xf6, + 0x35, 0xd2, 0x6e, 0x24, 0x16, 0x82, 0x5f, 0xda, + 0xe6, 0x75, 0xa2, 0xef, 0x2c, 0xb2, 0x1c, 0x9f, + 0x5d, 0x6f, 0x80, 0x0a, 0x72, 0x44, 0x9b, 0x6c, + 0x90, 0x0b, 0x5b, 0x33, 0x7d, 0x5a, 0x52, 0xf3, + 0x61, 0xa1, 0xf7, 0xb0, 0xd6, 0x3f, 0x7c, 0x6d, + 0xed, 0x14, 0xe0, 0xa5, 0x3d, 0x22, 0xb3, 0xf8, + 0x89, 0xde, 0x71, 0x1a, 0xaf, 0xba, 0xb5, 0x81 +}; + +static const unsigned char sb3[256] = { + 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 +}; + +static const unsigned char sb4[256] = { + 0x30, 0x68, 0x99, 0x1b, 0x87, 0xb9, 0x21, 0x78, + 0x50, 0x39, 0xdb, 0xe1, 0x72, 0x09, 0x62, 0x3c, + 0x3e, 0x7e, 0x5e, 0x8e, 0xf1, 0xa0, 0xcc, 0xa3, + 0x2a, 0x1d, 0xfb, 0xb6, 0xd6, 0x20, 0xc4, 0x8d, + 0x81, 0x65, 0xf5, 0x89, 0xcb, 0x9d, 0x77, 0xc6, + 0x57, 0x43, 0x56, 0x17, 0xd4, 0x40, 0x1a, 0x4d, + 0xc0, 0x63, 0x6c, 0xe3, 0xb7, 0xc8, 0x64, 0x6a, + 0x53, 0xaa, 0x38, 0x98, 0x0c, 0xf4, 0x9b, 0xed, + 0x7f, 0x22, 0x76, 0xaf, 0xdd, 0x3a, 0x0b, 0x58, + 0x67, 0x88, 0x06, 0xc3, 0x35, 0x0d, 0x01, 0x8b, + 0x8c, 0xc2, 0xe6, 0x5f, 0x02, 0x24, 0x75, 0x93, + 0x66, 0x1e, 0xe5, 0xe2, 0x54, 0xd8, 0x10, 0xce, + 0x7a, 0xe8, 0x08, 0x2c, 0x12, 0x97, 0x32, 0xab, + 0xb4, 0x27, 0x0a, 0x23, 0xdf, 0xef, 0xca, 0xd9, + 0xb8, 0xfa, 0xdc, 0x31, 0x6b, 0xd1, 0xad, 0x19, + 0x49, 0xbd, 0x51, 0x96, 0xee, 0xe4, 0xa8, 0x41, + 0xda, 0xff, 0xcd, 0x55, 0x86, 0x36, 0xbe, 0x61, + 0x52, 0xf8, 0xbb, 0x0e, 0x82, 0x48, 0x69, 0x9a, + 0xe0, 0x47, 0x9e, 0x5c, 0x04, 0x4b, 0x34, 0x15, + 0x79, 0x26, 0xa7, 0xde, 0x29, 0xae, 0x92, 0xd7, + 0x84, 0xe9, 0xd2, 0xba, 0x5d, 0xf3, 0xc5, 0xb0, + 0xbf, 0xa4, 0x3b, 0x71, 0x44, 0x46, 0x2b, 0xfc, + 0xeb, 0x6f, 0xd5, 0xf6, 0x14, 0xfe, 0x7c, 0x70, + 0x5a, 0x7d, 0xfd, 0x2f, 0x18, 0x83, 0x16, 0xa5, + 0x91, 0x1f, 0x05, 0x95, 0x74, 0xa9, 0xc1, 0x5b, + 0x4a, 0x85, 0x6d, 0x13, 0x07, 0x4f, 0x4e, 0x45, + 0xb2, 0x0f, 0xc9, 0x1c, 0xa6, 0xbc, 0xec, 0x73, + 0x90, 0x7b, 0xcf, 0x59, 0x8f, 0xa1, 0xf9, 0x2d, + 0xf2, 0xb1, 0x00, 0x94, 0x37, 0x9f, 0xd0, 0x2e, + 0x9c, 0x6e, 0x28, 0x3f, 0x80, 0xf0, 0x3d, 0xd3, + 0x25, 0x8a, 0xb5, 0xe7, 0x42, 0xb3, 0xc7, 0xea, + 0xf7, 0x4c, 0x11, 0x33, 0x03, 0xa2, 0xac, 0x60 +}; + +static const ARIA_u128 c1 = { + 0x51, 0x7c, 0xc1, 0xb7, 0x27, 0x22, 0x0a, 0x94, + 0xfe, 0x13, 0xab, 0xe8, 0xfa, 0x9a, 0x6e, 0xe0 +}; + +static const ARIA_u128 c2 = { + 0x6d, 0xb1, 0x4a, 0xcc, 0x9e, 0x21, 0xc8, 0x20, + 0xff, 0x28, 0xb1, 0xd5, 0xef, 0x5d, 0xe2, 0xb0 +}; + +static const ARIA_u128 c3 = { + 0xdb, 0x92, 0x37, 0x1d, 0x21, 0x26, 0xe9, 0x70, + 0x03, 0x24, 0x97, 0x75, 0x04, 0xe8, 0xc9, 0x0e +}; + +/* + * Exclusive or two 128 bit values into the result. + * It is safe for the result to be the same as the either input. + */ +static void xor128(ARIA_u128 o, const ARIA_u128 x, const ARIA_u128 y) +{ + int i; + + for (i = 0; i < ARIA_BLOCK_SIZE; i++) + o[i] = x[i] ^ y[i]; +} + +/* + * Generalised circular rotate right and exclusive or function. + * It is safe for the output to overlap either input. + */ +static ossl_inline void rotnr(unsigned int n, ARIA_u128 o, const ARIA_u128 xor, + const ARIA_u128 z) +{ + const unsigned int bytes = n / 8, bits = n % 8; + unsigned int i; + ARIA_u128 t; + + for (i = 0; i < ARIA_BLOCK_SIZE; i++) + t[(i + bytes) % ARIA_BLOCK_SIZE] = z[i]; + for (i = 0; i < ARIA_BLOCK_SIZE; i++) + o[i] = ((t[i] >> bits) | + (t[i ? i - 1 : ARIA_BLOCK_SIZE - 1] << (8 - bits))) ^ xor[i]; +} + +/* + * Circular rotate 19 bits right and xor. + * It is safe for the output to overlap either input. + */ +static void rot19r(ARIA_u128 o, const ARIA_u128 xor, const ARIA_u128 z) +{ + rotnr(19, o, xor, z); +} + +/* + * Circular rotate 31 bits right and xor. + * It is safe for the output to overlap either input. + */ +static void rot31r(ARIA_u128 o, const ARIA_u128 xor, const ARIA_u128 z) +{ + rotnr(31, o, xor, z); +} + +/* + * Circular rotate 61 bits left and xor. + * It is safe for the output to overlap either input. + */ +static void rot61l(ARIA_u128 o, const ARIA_u128 xor, const ARIA_u128 z) +{ + rotnr(8 * ARIA_BLOCK_SIZE - 61, o, xor, z); +} + +/* + * Circular rotate 31 bits left and xor. + * It is safe for the output to overlap either input. + */ +static void rot31l(ARIA_u128 o, const ARIA_u128 xor, const ARIA_u128 z) +{ + rotnr(8 * ARIA_BLOCK_SIZE - 31, o, xor, z); +} + +/* + * Circular rotate 19 bits left and xor. + * It is safe for the output to overlap either input. + */ +static void rot19l(ARIA_u128 o, const ARIA_u128 xor, const ARIA_u128 z) +{ + rotnr(8 * ARIA_BLOCK_SIZE - 19, o, xor, z); +} + +/* + * First substitution and xor layer, used for odd steps. + * It is safe for the input and output to be the same. + */ +static void sl1(ARIA_u128 o, const ARIA_u128 x, const ARIA_u128 y) +{ + unsigned int i; + for (i = 0; i < ARIA_BLOCK_SIZE; i += 4) { + o[i ] = sb1[x[i ] ^ y[i ]]; + o[i + 1] = sb2[x[i + 1] ^ y[i + 1]]; + o[i + 2] = sb3[x[i + 2] ^ y[i + 2]]; + o[i + 3] = sb4[x[i + 3] ^ y[i + 3]]; + } +} + +/* + * Second substitution and xor layer, used for even steps. + * It is safe for the input and output to be the same. + */ +static void sl2(ARIA_u128 o, const ARIA_u128 x, const ARIA_u128 y) +{ + unsigned int i; + for (i = 0; i < ARIA_BLOCK_SIZE; i += 4) { + o[i ] = sb3[x[i ] ^ y[i ]]; + o[i + 1] = sb4[x[i + 1] ^ y[i + 1]]; + o[i + 2] = sb1[x[i + 2] ^ y[i + 2]]; + o[i + 3] = sb2[x[i + 3] ^ y[i + 3]]; + } +} + +/* + * Diffusion layer step + * It is NOT safe for the input and output to overlap. + */ +static void a(ARIA_u128 y, const ARIA_u128 x) +{ + y[ 0] = x[3] ^ x[4] ^ x[6] ^ x[ 8] ^ x[ 9] ^ x[13] ^ x[14]; + y[ 1] = x[2] ^ x[5] ^ x[7] ^ x[ 8] ^ x[ 9] ^ x[12] ^ x[15]; + y[ 2] = x[1] ^ x[4] ^ x[6] ^ x[10] ^ x[11] ^ x[12] ^ x[15]; + y[ 3] = x[0] ^ x[5] ^ x[7] ^ x[10] ^ x[11] ^ x[13] ^ x[14]; + y[ 4] = x[0] ^ x[2] ^ x[5] ^ x[ 8] ^ x[11] ^ x[14] ^ x[15]; + y[ 5] = x[1] ^ x[3] ^ x[4] ^ x[ 9] ^ x[10] ^ x[14] ^ x[15]; + y[ 6] = x[0] ^ x[2] ^ x[7] ^ x[ 9] ^ x[10] ^ x[12] ^ x[13]; + y[ 7] = x[1] ^ x[3] ^ x[6] ^ x[ 8] ^ x[11] ^ x[12] ^ x[13]; + y[ 8] = x[0] ^ x[1] ^ x[4] ^ x[ 7] ^ x[10] ^ x[13] ^ x[15]; + y[ 9] = x[0] ^ x[1] ^ x[5] ^ x[ 6] ^ x[11] ^ x[12] ^ x[14]; + y[10] = x[2] ^ x[3] ^ x[5] ^ x[ 6] ^ x[ 8] ^ x[13] ^ x[15]; + y[11] = x[2] ^ x[3] ^ x[4] ^ x[ 7] ^ x[ 9] ^ x[12] ^ x[14]; + y[12] = x[1] ^ x[2] ^ x[6] ^ x[ 7] ^ x[ 9] ^ x[11] ^ x[12]; + y[13] = x[0] ^ x[3] ^ x[6] ^ x[ 7] ^ x[ 8] ^ x[10] ^ x[13]; + y[14] = x[0] ^ x[3] ^ x[4] ^ x[ 5] ^ x[ 9] ^ x[11] ^ x[14]; + y[15] = x[1] ^ x[2] ^ x[4] ^ x[ 5] ^ x[ 8] ^ x[10] ^ x[15]; +} + +/* + * Odd round function + * Apply the first substitution layer and then a diffusion step. + * It is safe for the input and output to overlap. + */ +static ossl_inline void FO(ARIA_u128 o, const ARIA_u128 d, const ARIA_u128 rk) +{ + ARIA_u128 y; + + sl1(y, d, rk); + a(o, y); +} + +/* + * Even round function + * Apply the second substitution layer and then a diffusion step. + * It is safe for the input and output to overlap. + */ +static ossl_inline void FE(ARIA_u128 o, const ARIA_u128 d, const ARIA_u128 rk) +{ + ARIA_u128 y; + + sl2(y, d, rk); + a(o, y); +} + +/* + * Encrypt or decrypt a single block + * in and out can overlap + */ +static void do_encrypt(ARIA_u128 o, const ARIA_u128 pin, unsigned int rounds, + const ARIA_u128 *keys) +{ + ARIA_u128 p; + unsigned int i; + + memcpy(p, pin, sizeof(p)); + for (i = 0; i < rounds - 2; i += 2) { + FO(p, p, keys[i]); + FE(p, p, keys[i + 1]); + } + FO(p, p, keys[rounds - 2]); + sl2(o, p, keys[rounds - 1]); + xor128(o, o, keys[rounds]); +} + +/* + * Encrypt a single block + * in and out can overlap + */ +void aria_encrypt(const unsigned char *in, unsigned char *out, + const ARIA_KEY *key) +{ + assert(in != NULL && out != NULL && key != NULL); + do_encrypt(out, in, key->rounds, key->rd_key); +} + + +/* + * Expand the cipher key into the encryption key schedule. + * We short circuit execution of the last two + * or four rotations based on the key size. + */ +int aria_set_encrypt_key(const unsigned char *userKey, const int bits, + ARIA_KEY *key) +{ + const unsigned char *ck1, *ck2, *ck3; + ARIA_u128 kr, w0, w1, w2, w3; + + if (!userKey || !key) + return -1; + memcpy(w0, userKey, sizeof(w0)); + switch (bits) { + default: + return -2; + case 128: + key->rounds = 12; + ck1 = c1; + ck2 = c2; + ck3 = c3; + memset(kr, 0, sizeof(kr)); + break; + + case 192: + key->rounds = 14; + ck1 = c2; + ck2 = c3; + ck3 = c1; + memcpy(kr, userKey + ARIA_BLOCK_SIZE, sizeof(kr) / 2); + memset(kr + ARIA_BLOCK_SIZE / 2, 0, sizeof(kr) / 2); + break; + + case 256: + key->rounds = 16; + ck1 = c3; + ck2 = c1; + ck3 = c2; + memcpy(kr, userKey + ARIA_BLOCK_SIZE, sizeof(kr)); + break; + } + + FO(w3, w0, ck1); xor128(w1, w3, kr); + FE(w3, w1, ck2); xor128(w2, w3, w0); + FO(kr, w2, ck3); xor128(w3, kr, w1); + + rot19r(key->rd_key[ 0], w0, w1); + rot19r(key->rd_key[ 1], w1, w2); + rot19r(key->rd_key[ 2], w2, w3); + rot19r(key->rd_key[ 3], w3, w0); + + rot31r(key->rd_key[ 4], w0, w1); + rot31r(key->rd_key[ 5], w1, w2); + rot31r(key->rd_key[ 6], w2, w3); + rot31r(key->rd_key[ 7], w3, w0); + + rot61l(key->rd_key[ 8], w0, w1); + rot61l(key->rd_key[ 9], w1, w2); + rot61l(key->rd_key[10], w2, w3); + rot61l(key->rd_key[11], w3, w0); + + rot31l(key->rd_key[12], w0, w1); + if (key->rounds > 12) { + rot31l(key->rd_key[13], w1, w2); + rot31l(key->rd_key[14], w2, w3); + + if (key->rounds > 14) { + rot31l(key->rd_key[15], w3, w0); + rot19l(key->rd_key[16], w0, w1); + } + } + return 0; +} + +/* + * Expand the cipher key into the decryption key schedule. + */ +int aria_set_decrypt_key(const unsigned char *userKey, const int bits, + ARIA_KEY *key) +{ + ARIA_KEY ek; + const int r = aria_set_encrypt_key(userKey, bits, &ek); + unsigned int i, rounds = ek.rounds; + + if (r == 0) { + key->rounds = rounds; + memcpy(key->rd_key[0], ek.rd_key[rounds], sizeof(key->rd_key[0])); + for (i = 1; i < rounds; i++) + a(key->rd_key[i], ek.rd_key[rounds - i]); + memcpy(key->rd_key[rounds], ek.rd_key[0], sizeof(key->rd_key[rounds])); + } + return r; +} diff --git a/crypto/aria/build.info b/crypto/aria/build.info new file mode 100644 index 0000000000..218d0612f7 --- /dev/null +++ b/crypto/aria/build.info @@ -0,0 +1,4 @@ +LIBS=../../libcrypto +SOURCE[../../libcrypto]=\ + aria.c + |