diff options
Diffstat (limited to 'roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/mdc2/mdc2dgst.c')
-rw-r--r-- | roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/mdc2/mdc2dgst.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/mdc2/mdc2dgst.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/mdc2/mdc2dgst.c new file mode 100644 index 000000000..14233b9ab --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/mdc2/mdc2dgst.c @@ -0,0 +1,126 @@ +/* + * 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 <stdlib.h> +#include <string.h> +#include <openssl/crypto.h> +#include <openssl/des.h> +#include <openssl/mdc2.h> + +#undef c2l +#define c2l(c,l) (l =((DES_LONG)(*((c)++))) , \ + l|=((DES_LONG)(*((c)++)))<< 8L, \ + l|=((DES_LONG)(*((c)++)))<<16L, \ + l|=((DES_LONG)(*((c)++)))<<24L) + +#undef l2c +#define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ + *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ + *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ + *((c)++)=(unsigned char)(((l)>>24L)&0xff)) + +static void mdc2_body(MDC2_CTX *c, const unsigned char *in, size_t len); +int MDC2_Init(MDC2_CTX *c) +{ + c->num = 0; + c->pad_type = 1; + memset(&(c->h[0]), 0x52, MDC2_BLOCK); + memset(&(c->hh[0]), 0x25, MDC2_BLOCK); + return 1; +} + +int MDC2_Update(MDC2_CTX *c, const unsigned char *in, size_t len) +{ + size_t i, j; + + i = c->num; + if (i != 0) { + if (len < MDC2_BLOCK - i) { + /* partial block */ + memcpy(&(c->data[i]), in, len); + c->num += (int)len; + return 1; + } else { + /* filled one */ + j = MDC2_BLOCK - i; + memcpy(&(c->data[i]), in, j); + len -= j; + in += j; + c->num = 0; + mdc2_body(c, &(c->data[0]), MDC2_BLOCK); + } + } + i = len & ~((size_t)MDC2_BLOCK - 1); + if (i > 0) + mdc2_body(c, in, i); + j = len - i; + if (j > 0) { + memcpy(&(c->data[0]), &(in[i]), j); + c->num = (int)j; + } + return 1; +} + +static void mdc2_body(MDC2_CTX *c, const unsigned char *in, size_t len) +{ + register DES_LONG tin0, tin1; + register DES_LONG ttin0, ttin1; + DES_LONG d[2], dd[2]; + DES_key_schedule k; + unsigned char *p; + size_t i; + + for (i = 0; i < len; i += 8) { + c2l(in, tin0); + d[0] = dd[0] = tin0; + c2l(in, tin1); + d[1] = dd[1] = tin1; + c->h[0] = (c->h[0] & 0x9f) | 0x40; + c->hh[0] = (c->hh[0] & 0x9f) | 0x20; + + DES_set_odd_parity(&c->h); + DES_set_key_unchecked(&c->h, &k); + DES_encrypt1(d, &k, 1); + + DES_set_odd_parity(&c->hh); + DES_set_key_unchecked(&c->hh, &k); + DES_encrypt1(dd, &k, 1); + + ttin0 = tin0 ^ dd[0]; + ttin1 = tin1 ^ dd[1]; + tin0 ^= d[0]; + tin1 ^= d[1]; + + p = c->h; + l2c(tin0, p); + l2c(ttin1, p); + p = c->hh; + l2c(ttin0, p); + l2c(tin1, p); + } +} + +int MDC2_Final(unsigned char *md, MDC2_CTX *c) +{ + unsigned int i; + int j; + + i = c->num; + j = c->pad_type; + if ((i > 0) || (j == 2)) { + if (j == 2) + c->data[i++] = 0x80; + memset(&(c->data[i]), 0, MDC2_BLOCK - i); + mdc2_body(c, c->data, MDC2_BLOCK); + } + memcpy(md, (char *)c->h, MDC2_BLOCK); + memcpy(&(md[MDC2_BLOCK]), (char *)c->hh, MDC2_BLOCK); + return 1; +} |