src/usr.bin/ssh/cipher.c - diff

Return to cipher.c CVS log

Up to [local] / src / usr.bin / ssh

Diff for /src/usr.bin/ssh/cipher.c between version 1.43 and 1.44

version 1.43, 2001/02/04 15:32:23

version 1.44, 2001/05/28 22:51:10

Line 100

void

des3_setiv(CipherContext *cc, const u_char *iv, u_int ivlen)

{

memset(cc->u.des3.iv1, 0, sizeof(cc->u.des3.iv1));

memset(cc->u.des3.iv2, 0, sizeof(cc->u.des3.iv2));

memset(cc->u.des3.iv3, 0, sizeof(cc->u.des3.iv3));

if (iv == NULL)

Line 149

Line 150

des3_ssh1_encrypt(CipherContext *cc, u_char *dest, const u_char *src,

u_int len)

{

des_cblock iv1;

des_ncbc_encrypt(src, dest, len, cc->u.des3.key1, &cc->u.des3.iv1,

des_cblock *iv2 = &cc->u.des3.iv2;

DES_ENCRYPT);

des_cblock *iv3 = &cc->u.des3.iv3;

des_ncbc_encrypt(dest, dest, len, cc->u.des3.key2, &cc->u.des3.iv2,

DES_DECRYPT);

memcpy(&iv1, iv2, 8);

des_ncbc_encrypt(dest, dest, len, cc->u.des3.key3, &cc->u.des3.iv3,

DES_ENCRYPT);

des_ncbc_encrypt(src, dest, len, cc->u.des3.key1, &iv1, DES_ENCRYPT);

des_ncbc_encrypt(dest, dest, len, cc->u.des3.key2, iv2, DES_DECRYPT);

des_ncbc_encrypt(dest, dest, len, cc->u.des3.key3, iv3, DES_ENCRYPT);

}

void

des3_ssh1_decrypt(CipherContext *cc, u_char *dest, const u_char *src,

u_int len)

{

des_cblock iv1;

des_ncbc_encrypt(src, dest, len, cc->u.des3.key3, &cc->u.des3.iv3,

des_cblock *iv2 = &cc->u.des3.iv2;

DES_DECRYPT);

des_cblock *iv3 = &cc->u.des3.iv3;

des_ncbc_encrypt(dest, dest, len, cc->u.des3.key2, &cc->u.des3.iv2,

DES_ENCRYPT);

memcpy(&iv1, iv2, 8);

des_ncbc_encrypt(dest, dest, len, cc->u.des3.key1, &cc->u.des3.iv1,

DES_DECRYPT);

des_ncbc_encrypt(src, dest, len, cc->u.des3.key3, iv3, DES_DECRYPT);

des_ncbc_encrypt(dest, dest, len, cc->u.des3.key2, iv2, DES_ENCRYPT);

des_ncbc_encrypt(dest, dest, len, cc->u.des3.key1, &iv1, DES_DECRYPT);

}

/* Blowfish */