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author | marha <marha@users.sourceforge.net> | 2010-03-30 12:36:28 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2010-03-30 12:36:28 +0000 |
commit | ff48c0d9098080b51ea12710029135916d117806 (patch) | |
tree | 96e6af9caf170ba21a1027b24e306a07e27d7b75 /openssl/crypto/camellia/cmll_cfb.c | |
parent | bb731f5ac92655c4860a41fa818a7a63005f8369 (diff) | |
download | vcxsrv-ff48c0d9098080b51ea12710029135916d117806.tar.gz vcxsrv-ff48c0d9098080b51ea12710029135916d117806.tar.bz2 vcxsrv-ff48c0d9098080b51ea12710029135916d117806.zip |
svn merge -r514:HEAD ^/branches/released .
Diffstat (limited to 'openssl/crypto/camellia/cmll_cfb.c')
-rw-r--r-- | openssl/crypto/camellia/cmll_cfb.c | 110 |
1 files changed, 7 insertions, 103 deletions
diff --git a/openssl/crypto/camellia/cmll_cfb.c b/openssl/crypto/camellia/cmll_cfb.c index af0f9f49a..3d81b51d3 100644 --- a/openssl/crypto/camellia/cmll_cfb.c +++ b/openssl/crypto/camellia/cmll_cfb.c @@ -105,17 +105,8 @@ * [including the GNU Public Licence.] */ -#ifndef CAMELLIA_DEBUG -# ifndef NDEBUG -# define NDEBUG -# endif -#endif -#include <assert.h> -#include <string.h> - #include <openssl/camellia.h> -#include "cmll_locl.h" -#include "e_os.h" +#include <openssl/modes.h> /* The input and output encrypted as though 128bit cfb mode is being @@ -124,112 +115,25 @@ */ void Camellia_cfb128_encrypt(const unsigned char *in, unsigned char *out, - const unsigned long length, const CAMELLIA_KEY *key, + size_t length, const CAMELLIA_KEY *key, unsigned char *ivec, int *num, const int enc) { - unsigned int n; - unsigned long l = length; - unsigned char c; - - assert(in && out && key && ivec && num); - - n = *num; - - if (enc) - { - while (l--) - { - if (n == 0) - { - Camellia_encrypt(ivec, ivec, key); - } - ivec[n] = *(out++) = *(in++) ^ ivec[n]; - n = (n+1) % CAMELLIA_BLOCK_SIZE; - } - } - else - { - while (l--) - { - if (n == 0) - { - Camellia_encrypt(ivec, ivec, key); - } - c = *(in); - *(out++) = *(in++) ^ ivec[n]; - ivec[n] = c; - n = (n+1) % CAMELLIA_BLOCK_SIZE; - } - } - - *num=n; - } - -/* This expects a single block of size nbits for both in and out. Note that - it corrupts any extra bits in the last byte of out */ -void Camellia_cfbr_encrypt_block(const unsigned char *in,unsigned char *out, - const int nbits,const CAMELLIA_KEY *key, - unsigned char *ivec,const int enc) - { - int n,rem,num; - unsigned char ovec[CAMELLIA_BLOCK_SIZE*2]; - - if (nbits<=0 || nbits>128) return; - - /* fill in the first half of the new IV with the current IV */ - memcpy(ovec,ivec,CAMELLIA_BLOCK_SIZE); - /* construct the new IV */ - Camellia_encrypt(ivec,ivec,key); - num = (nbits+7)/8; - if (enc) /* encrypt the input */ - for(n=0 ; n < num ; ++n) - out[n] = (ovec[CAMELLIA_BLOCK_SIZE+n] = in[n] ^ ivec[n]); - else /* decrypt the input */ - for(n=0 ; n < num ; ++n) - out[n] = (ovec[CAMELLIA_BLOCK_SIZE+n] = in[n]) ^ ivec[n]; - /* shift ovec left... */ - rem = nbits%8; - num = nbits/8; - if(rem==0) - memcpy(ivec,ovec+num,CAMELLIA_BLOCK_SIZE); - else - for(n=0 ; n < CAMELLIA_BLOCK_SIZE ; ++n) - ivec[n] = ovec[n+num]<<rem | ovec[n+num+1]>>(8-rem); - - /* it is not necessary to cleanse ovec, since the IV is not secret */ + CRYPTO_cfb128_encrypt(in,out,length,key,ivec,num,enc,(block128_f)Camellia_encrypt); } /* N.B. This expects the input to be packed, MS bit first */ void Camellia_cfb1_encrypt(const unsigned char *in, unsigned char *out, - const unsigned long length, const CAMELLIA_KEY *key, + size_t length, const CAMELLIA_KEY *key, unsigned char *ivec, int *num, const int enc) { - unsigned int n; - unsigned char c[1],d[1]; - - assert(in && out && key && ivec && num); - assert(*num == 0); - - memset(out,0,(length+7)/8); - for(n=0 ; n < length ; ++n) - { - c[0]=(in[n/8]&(1 << (7-n%8))) ? 0x80 : 0; - Camellia_cfbr_encrypt_block(c,d,1,key,ivec,enc); - out[n/8]=(out[n/8]&~(1 << (7-n%8)))|((d[0]&0x80) >> (n%8)); - } + CRYPTO_cfb128_1_encrypt(in,out,length,key,ivec,num,enc,(block128_f)Camellia_encrypt); } void Camellia_cfb8_encrypt(const unsigned char *in, unsigned char *out, - const unsigned long length, const CAMELLIA_KEY *key, + size_t length, const CAMELLIA_KEY *key, unsigned char *ivec, int *num, const int enc) { - unsigned int n; - - assert(in && out && key && ivec && num); - assert(*num == 0); - - for(n=0 ; n < length ; ++n) - Camellia_cfbr_encrypt_block(&in[n],&out[n],8,key,ivec,enc); + CRYPTO_cfb128_8_encrypt(in,out,length,key,ivec,num,enc,(block128_f)Camellia_encrypt); } |