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author | 2023-10-10 14:33:42 +0000 | |
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committer | 2023-10-10 14:33:42 +0000 | |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/des/pcbc_enc.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/des/pcbc_enc.c')
-rw-r--r-- | roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/des/pcbc_enc.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/des/pcbc_enc.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/des/pcbc_enc.c new file mode 100644 index 000000000..349059274 --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/des/pcbc_enc.c @@ -0,0 +1,66 @@ +/* + * 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 "des_local.h" + +void DES_pcbc_encrypt(const unsigned char *input, unsigned char *output, + long length, DES_key_schedule *schedule, + DES_cblock *ivec, int enc) +{ + register DES_LONG sin0, sin1, xor0, xor1, tout0, tout1; + DES_LONG tin[2]; + const unsigned char *in; + unsigned char *out, *iv; + + in = input; + out = output; + iv = &(*ivec)[0]; + + if (enc) { + c2l(iv, xor0); + c2l(iv, xor1); + for (; length > 0; length -= 8) { + if (length >= 8) { + c2l(in, sin0); + c2l(in, sin1); + } else + c2ln(in, sin0, sin1, length); + tin[0] = sin0 ^ xor0; + tin[1] = sin1 ^ xor1; + DES_encrypt1((DES_LONG *)tin, schedule, DES_ENCRYPT); + tout0 = tin[0]; + tout1 = tin[1]; + xor0 = sin0 ^ tout0; + xor1 = sin1 ^ tout1; + l2c(tout0, out); + l2c(tout1, out); + } + } else { + c2l(iv, xor0); + c2l(iv, xor1); + for (; length > 0; length -= 8) { + c2l(in, sin0); + c2l(in, sin1); + tin[0] = sin0; + tin[1] = sin1; + DES_encrypt1((DES_LONG *)tin, schedule, DES_DECRYPT); + tout0 = tin[0] ^ xor0; + tout1 = tin[1] ^ xor1; + if (length >= 8) { + l2c(tout0, out); + l2c(tout1, out); + } else + l2cn(tout0, tout1, out, length); + xor0 = tout0 ^ sin0; + xor1 = tout1 ^ sin1; + } + } + tin[0] = tin[1] = 0; + sin0 = sin1 = xor0 = xor1 = tout0 = tout1 = 0; +} |