diff options
Diffstat (limited to 'crypto/openssh/cipher.c')
| -rw-r--r-- | crypto/openssh/cipher.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/crypto/openssh/cipher.c b/crypto/openssh/cipher.c index 36d616a..b18c701 100644 --- a/crypto/openssh/cipher.c +++ b/crypto/openssh/cipher.c @@ -43,6 +43,11 @@ RCSID("$OpenBSD: cipher.c,v 1.59 2002/06/19 18:01:00 markus Exp $"); #include <openssl/md5.h> +#if OPENSSL_VERSION_NUMBER < 0x00906000L +#define SSH_OLD_EVP +#define EVP_CIPHER_CTX_get_app_data(e) ((e)->app_data) +#endif + #if OPENSSL_VERSION_NUMBER < 0x00907000L #include "rijndael.h" static const EVP_CIPHER *evp_rijndael(void); @@ -188,7 +193,11 @@ cipher_init(CipherContext *cc, Cipher *cipher, int encrypt) { static int dowarn = 1; +#ifdef SSH_OLD_EVP + EVP_CIPHER *type; +#else const EVP_CIPHER *type; +#endif int klen; if (cipher->number == SSH_CIPHER_DES) { @@ -213,6 +222,15 @@ cipher_init(CipherContext *cc, Cipher *cipher, type = (*cipher->evptype)(); EVP_CIPHER_CTX_init(&cc->evp); +#ifdef SSH_OLD_EVP + if (type->key_len > 0 && type->key_len != keylen) { + debug("cipher_init: set keylen (%d -> %d)", + type->key_len, keylen); + type->key_len = keylen; + } + EVP_CipherInit(&cc->evp, type, (u_char *)key, (u_char *)iv, + (encrypt == CIPHER_ENCRYPT)); +#else if (EVP_CipherInit(&cc->evp, type, NULL, (u_char *)iv, (encrypt == CIPHER_ENCRYPT)) == 0) fatal("cipher_init: EVP_CipherInit failed for %s", @@ -227,6 +245,7 @@ cipher_init(CipherContext *cc, Cipher *cipher, if (EVP_CipherInit(&cc->evp, NULL, (u_char *)key, NULL, -1) == 0) fatal("cipher_init: EVP_CipherInit: set key failed for %s", cipher->name); +#endif } void @@ -234,15 +253,23 @@ cipher_crypt(CipherContext *cc, u_char *dest, const u_char *src, u_int len) { if (len % cc->cipher->block_size) fatal("cipher_encrypt: bad plaintext length %d", len); +#ifdef SSH_OLD_EVP + EVP_Cipher(&cc->evp, dest, (u_char *)src, len); +#else if (EVP_Cipher(&cc->evp, dest, (u_char *)src, len) == 0) fatal("evp_crypt: EVP_Cipher failed"); +#endif } void cipher_cleanup(CipherContext *cc) { +#ifdef SSH_OLD_EVP + EVP_CIPHER_CTX_cleanup(&cc->evp); +#else if (EVP_CIPHER_CTX_cleanup(&cc->evp) == 0) error("cipher_cleanup: EVP_CIPHER_CTX_cleanup failed"); +#endif } /* @@ -313,6 +340,11 @@ ssh1_3des_init(EVP_CIPHER_CTX *ctx, const u_char *key, const u_char *iv, EVP_CIPHER_CTX_init(&c->k1); EVP_CIPHER_CTX_init(&c->k2); EVP_CIPHER_CTX_init(&c->k3); +#ifdef SSH_OLD_EVP + EVP_CipherInit(&c->k1, EVP_des_cbc(), k1, NULL, enc); + EVP_CipherInit(&c->k2, EVP_des_cbc(), k2, NULL, !enc); + EVP_CipherInit(&c->k3, EVP_des_cbc(), k3, NULL, enc); +#else if (EVP_CipherInit(&c->k1, EVP_des_cbc(), k1, NULL, enc) == 0 || EVP_CipherInit(&c->k2, EVP_des_cbc(), k2, NULL, !enc) == 0 || EVP_CipherInit(&c->k3, EVP_des_cbc(), k3, NULL, enc) == 0) { @@ -321,6 +353,7 @@ ssh1_3des_init(EVP_CIPHER_CTX *ctx, const u_char *key, const u_char *iv, EVP_CIPHER_CTX_set_app_data(ctx, NULL); return (0); } +#endif return (1); } static int @@ -332,10 +365,16 @@ ssh1_3des_cbc(EVP_CIPHER_CTX *ctx, u_char *dest, const u_char *src, u_int len) error("ssh1_3des_cbc: no context"); return (0); } +#ifdef SSH_OLD_EVP + EVP_Cipher(&c->k1, dest, (u_char *)src, len); + EVP_Cipher(&c->k2, dest, dest, len); + EVP_Cipher(&c->k3, dest, dest, len); +#else if (EVP_Cipher(&c->k1, dest, (u_char *)src, len) == 0 || EVP_Cipher(&c->k2, dest, dest, len) == 0 || EVP_Cipher(&c->k3, dest, dest, len) == 0) return (0); +#endif return (1); } static int @@ -363,7 +402,9 @@ evp_ssh1_3des(void) ssh1_3des.init = ssh1_3des_init; ssh1_3des.cleanup = ssh1_3des_cleanup; ssh1_3des.do_cipher = ssh1_3des_cbc; +#ifndef SSH_OLD_EVP ssh1_3des.flags = EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH; +#endif return (&ssh1_3des); } @@ -512,8 +553,10 @@ evp_rijndael(void) rijndal_cbc.init = ssh_rijndael_init; rijndal_cbc.cleanup = ssh_rijndael_cleanup; rijndal_cbc.do_cipher = ssh_rijndael_cbc; +#ifndef SSH_OLD_EVP rijndal_cbc.flags = EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_ALWAYS_CALL_INIT; +#endif return (&rijndal_cbc); } #endif |
