diff options
Diffstat (limited to 'roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc5/rc5_enc.c')
| -rw-r--r-- | roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc5/rc5_enc.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc5/rc5_enc.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc5/rc5_enc.c new file mode 100644 index 000000000..75ddeb2ea --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/rc5/rc5_enc.c @@ -0,0 +1,160 @@ +/* + * Copyright 1995-2016 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 + */ + +#include <stdio.h> +#include <openssl/rc5.h> +#include "rc5_local.h" + +void RC5_32_cbc_encrypt(const unsigned char *in, unsigned char *out, + long length, RC5_32_KEY *ks, unsigned char *iv, + int encrypt) +{ + register unsigned long tin0, tin1; + register unsigned long tout0, tout1, xor0, xor1; + register long l = length; + unsigned long tin[2]; + + if (encrypt) { + c2l(iv, tout0); + c2l(iv, tout1); + iv -= 8; + for (l -= 8; l >= 0; l -= 8) { + c2l(in, tin0); + c2l(in, tin1); + tin0 ^= tout0; + tin1 ^= tout1; + tin[0] = tin0; + tin[1] = tin1; + RC5_32_encrypt(tin, ks); + tout0 = tin[0]; + l2c(tout0, out); + tout1 = tin[1]; + l2c(tout1, out); + } + if (l != -8) { + c2ln(in, tin0, tin1, l + 8); + tin0 ^= tout0; + tin1 ^= tout1; + tin[0] = tin0; + tin[1] = tin1; + RC5_32_encrypt(tin, ks); + tout0 = tin[0]; + l2c(tout0, out); + tout1 = tin[1]; + l2c(tout1, out); + } + l2c(tout0, iv); + l2c(tout1, iv); + } else { + c2l(iv, xor0); + c2l(iv, xor1); + iv -= 8; + for (l -= 8; l >= 0; l -= 8) { + c2l(in, tin0); + tin[0] = tin0; + c2l(in, tin1); + tin[1] = tin1; + RC5_32_decrypt(tin, ks); + tout0 = tin[0] ^ xor0; + tout1 = tin[1] ^ xor1; + l2c(tout0, out); + l2c(tout1, out); + xor0 = tin0; + xor1 = tin1; + } + if (l != -8) { + c2l(in, tin0); + tin[0] = tin0; + c2l(in, tin1); + tin[1] = tin1; + RC5_32_decrypt(tin, ks); + tout0 = tin[0] ^ xor0; + tout1 = tin[1] ^ xor1; + l2cn(tout0, tout1, out, l + 8); + xor0 = tin0; + xor1 = tin1; + } + l2c(xor0, iv); + l2c(xor1, iv); + } + tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0; + tin[0] = tin[1] = 0; +} + +void RC5_32_encrypt(unsigned long *d, RC5_32_KEY *key) +{ + RC5_32_INT a, b, *s; + + s = key->data; + + a = d[0] + s[0]; + b = d[1] + s[1]; + E_RC5_32(a, b, s, 2); + E_RC5_32(a, b, s, 4); + E_RC5_32(a, b, s, 6); + E_RC5_32(a, b, s, 8); + E_RC5_32(a, b, s, 10); + E_RC5_32(a, b, s, 12); + E_RC5_32(a, b, s, 14); + E_RC5_32(a, b, s, 16); + if (key->rounds == 12) { + E_RC5_32(a, b, s, 18); + E_RC5_32(a, b, s, 20); + E_RC5_32(a, b, s, 22); + E_RC5_32(a, b, s, 24); + } else if (key->rounds == 16) { + /* Do a full expansion to avoid a jump */ + E_RC5_32(a, b, s, 18); + E_RC5_32(a, b, s, 20); + E_RC5_32(a, b, s, 22); + E_RC5_32(a, b, s, 24); + E_RC5_32(a, b, s, 26); + E_RC5_32(a, b, s, 28); + E_RC5_32(a, b, s, 30); + E_RC5_32(a, b, s, 32); + } + d[0] = a; + d[1] = b; +} + +void RC5_32_decrypt(unsigned long *d, RC5_32_KEY *key) +{ + RC5_32_INT a, b, *s; + + s = key->data; + + a = d[0]; + b = d[1]; + if (key->rounds == 16) { + D_RC5_32(a, b, s, 32); + D_RC5_32(a, b, s, 30); + D_RC5_32(a, b, s, 28); + D_RC5_32(a, b, s, 26); + /* Do a full expansion to avoid a jump */ + D_RC5_32(a, b, s, 24); + D_RC5_32(a, b, s, 22); + D_RC5_32(a, b, s, 20); + D_RC5_32(a, b, s, 18); + } else if (key->rounds == 12) { + D_RC5_32(a, b, s, 24); + D_RC5_32(a, b, s, 22); + D_RC5_32(a, b, s, 20); + D_RC5_32(a, b, s, 18); + } + D_RC5_32(a, b, s, 16); + D_RC5_32(a, b, s, 14); + D_RC5_32(a, b, s, 12); + D_RC5_32(a, b, s, 10); + D_RC5_32(a, b, s, 8); + D_RC5_32(a, b, s, 6); + D_RC5_32(a, b, s, 4); + D_RC5_32(a, b, s, 2); + d[0] = a - s[0]; + d[1] = b - s[1]; +} |