* [including the GNU Public Licence.]
*/
-#ifndef NO_DES
#include <stdio.h>
#include "cryptlib.h"
+#ifndef OPENSSL_NO_DES
#include <openssl/evp.h>
#include <openssl/objects.h>
#include "evp_locl.h"
+#include <openssl/des.h>
+#include <openssl/rand.h>
+
+typedef struct
+ {
+ union { double align; DES_key_schedule ks; } ks;
+ union {
+ void (*cbc)(const void *,void *,size_t,const void *,void *);
+ } stream;
+ } EVP_DES_KEY;
+
+#if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
+/* ---------^^^ this is not a typo, just a way to detect that
+ * assembler support was in general requested... */
+#include "sparc_arch.h"
+
+extern unsigned int OPENSSL_sparcv9cap_P[];
+
+#define SPARC_DES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_DES)
+
+void des_t4_key_expand(const void *key, DES_key_schedule *ks);
+void des_t4_cbc_encrypt(const void *inp,void *out,size_t len,
+ DES_key_schedule *ks,unsigned char iv[8]);
+void des_t4_cbc_decrypt(const void *inp,void *out,size_t len,
+ DES_key_schedule *ks,unsigned char iv[8]);
+#endif
static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc);
+static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr);
/* Because of various casts and different names can't use IMPLEMENT_BLOCK_CIPHER */
static int des_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, unsigned int inl)
+ const unsigned char *in, size_t inl)
{
BLOCK_CIPHER_ecb_loop()
- des_ecb_encrypt((des_cblock *)(in + i), (des_cblock *)(out + i), ctx->c.des_ks, ctx->encrypt);
+ DES_ecb_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i), ctx->cipher_data, ctx->encrypt);
return 1;
}
static int des_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, unsigned int inl)
+ const unsigned char *in, size_t inl)
{
- des_ofb64_encrypt(in, out, (long)inl, ctx->c.des_ks, (des_cblock *)ctx->iv, &ctx->num);
+ while(inl>=EVP_MAXCHUNK)
+ {
+ DES_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data,
+ (DES_cblock *)ctx->iv, &ctx->num);
+ inl-=EVP_MAXCHUNK;
+ in +=EVP_MAXCHUNK;
+ out+=EVP_MAXCHUNK;
+ }
+ if (inl)
+ DES_ofb64_encrypt(in, out, (long)inl, ctx->cipher_data,
+ (DES_cblock *)ctx->iv, &ctx->num);
return 1;
}
static int des_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, unsigned int inl)
+ const unsigned char *in, size_t inl)
{
- des_ncbc_encrypt(in, out, (long)inl, ctx->c.des_ks,
- (des_cblock *)ctx->iv, ctx->encrypt);
+ EVP_DES_KEY *dat = (EVP_DES_KEY *)ctx->cipher_data;
+
+ if (dat->stream.cbc)
+ {
+ (*dat->stream.cbc)(in,out,inl,&dat->ks.ks,ctx->iv);
+ return 1;
+ }
+ while(inl>=EVP_MAXCHUNK)
+ {
+ DES_ncbc_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data,
+ (DES_cblock *)ctx->iv, ctx->encrypt);
+ inl-=EVP_MAXCHUNK;
+ in +=EVP_MAXCHUNK;
+ out+=EVP_MAXCHUNK;
+ }
+ if (inl)
+ DES_ncbc_encrypt(in, out, (long)inl, ctx->cipher_data,
+ (DES_cblock *)ctx->iv, ctx->encrypt);
return 1;
}
-static int des_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, unsigned int inl)
+static int des_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t inl)
{
- des_cfb64_encrypt(in, out, (long)inl, ctx->c.des_ks,
- (des_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
+ while(inl>=EVP_MAXCHUNK)
+ {
+ DES_cfb64_encrypt(in,out, (long)EVP_MAXCHUNK, ctx->cipher_data,
+ (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
+ inl-=EVP_MAXCHUNK;
+ in +=EVP_MAXCHUNK;
+ out+=EVP_MAXCHUNK;
+ }
+ if (inl)
+ DES_cfb64_encrypt(in, out, (long)inl, ctx->cipher_data,
+ (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
return 1;
}
-BLOCK_CIPHER_defs(des, des_ks, NID_des, 8, 8, 8,
- 0, des_init_key, NULL,
+/* Although we have a CFB-r implementation for DES, it doesn't pack the right
+ way, so wrap it here */
+static int des_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t inl)
+ {
+ size_t n,chunk=EVP_MAXCHUNK/8;
+ unsigned char c[1],d[1];
+
+ if (inl<chunk) chunk=inl;
+
+ while (inl && inl>=chunk)
+ {
+ for(n=0 ; n < chunk*8; ++n)
+ {
+ c[0]=(in[n/8]&(1 << (7-n%8))) ? 0x80 : 0;
+ DES_cfb_encrypt(c,d,1,1,ctx->cipher_data,(DES_cblock *)ctx->iv,
+ ctx->encrypt);
+ out[n/8]=(out[n/8]&~(0x80 >> (unsigned int)(n%8))) |
+ ((d[0]&0x80) >> (unsigned int)(n%8));
+ }
+ inl-=chunk;
+ in +=chunk;
+ out+=chunk;
+ if (inl<chunk) chunk=inl;
+ }
+
+ return 1;
+ }
+
+static int des_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t inl)
+ {
+ while (inl>=EVP_MAXCHUNK)
+ {
+ DES_cfb_encrypt(in,out,8,(long)EVP_MAXCHUNK,ctx->cipher_data,
+ (DES_cblock *)ctx->iv,ctx->encrypt);
+ inl-=EVP_MAXCHUNK;
+ in +=EVP_MAXCHUNK;
+ out+=EVP_MAXCHUNK;
+ }
+ if (inl)
+ DES_cfb_encrypt(in,out,8,(long)inl,ctx->cipher_data,
+ (DES_cblock *)ctx->iv,ctx->encrypt);
+ return 1;
+ }
+
+BLOCK_CIPHER_defs(des, EVP_DES_KEY, NID_des, 8, 8, 8, 64,
+ EVP_CIPH_RAND_KEY, des_init_key, NULL,
EVP_CIPHER_set_asn1_iv,
EVP_CIPHER_get_asn1_iv,
- NULL)
+ des_ctrl)
+
+BLOCK_CIPHER_def_cfb(des,EVP_DES_KEY,NID_des,8,8,1,
+ EVP_CIPH_RAND_KEY, des_init_key,NULL,
+ EVP_CIPHER_set_asn1_iv,
+ EVP_CIPHER_get_asn1_iv,des_ctrl)
+BLOCK_CIPHER_def_cfb(des,EVP_DES_KEY,NID_des,8,8,8,
+ EVP_CIPH_RAND_KEY,des_init_key,NULL,
+ EVP_CIPHER_set_asn1_iv,
+ EVP_CIPHER_get_asn1_iv,des_ctrl)
static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
- des_cblock *deskey = (des_cblock *)key;
+ DES_cblock *deskey = (DES_cblock *)key;
+ EVP_DES_KEY *dat = (EVP_DES_KEY *)ctx->cipher_data;
+
+ dat->stream.cbc = NULL;
+#if defined(SPARC_DES_CAPABLE)
+ if (SPARC_DES_CAPABLE)
+ {
+ int mode = ctx->cipher->flags & EVP_CIPH_MODE;
- des_set_key_unchecked(deskey,ctx->c.des_ks);
+ if (mode == EVP_CIPH_CBC_MODE)
+ {
+ des_t4_key_expand(key,&dat->ks.ks);
+ dat->stream.cbc = enc ? des_t4_cbc_encrypt :
+ des_t4_cbc_decrypt;
+ return 1;
+ }
+ }
+#endif
+#ifdef EVP_CHECK_DES_KEY
+ if(DES_set_key_checked(deskey,dat->ks.ks) != 0)
+ return 0;
+#else
+ DES_set_key_unchecked(deskey,ctx->cipher_data);
+#endif
return 1;
}
+static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
+ {
+
+ switch(type)
+ {
+ case EVP_CTRL_RAND_KEY:
+ if (RAND_bytes(ptr, 8) <= 0)
+ return 0;
+ DES_set_odd_parity((DES_cblock *)ptr);
+ return 1;
+
+ default:
+ return -1;
+ }
+ }
+
#endif
projects / openssl.git / blobdiff