* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
- *
+ *
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
+ *
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
+ * 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
+ *
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- *
+ *
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
#include <openssl/err.h>
#include <openssl/rand.h>
#ifndef OPENSSL_NO_ENGINE
-#include <openssl/engine.h>
+# include <openssl/engine.h>
#endif
#include "evp_locl.h"
#ifdef OPENSSL_FIPS
- #define M_do_cipher(ctx, out, in, inl) \
- EVP_Cipher(ctx,out,in,inl)
+# define M_do_cipher(ctx, out, in, inl) \
+ EVP_Cipher(ctx,out,in,inl)
#else
- #define M_do_cipher(ctx, out, in, inl) \
- ctx->cipher->do_cipher(ctx,out,in,inl)
+# define M_do_cipher(ctx, out, in, inl) \
+ ctx->cipher->do_cipher(ctx,out,in,inl)
#endif
-const char EVP_version[]="EVP" OPENSSL_VERSION_PTEXT;
+const char EVP_version[] = "EVP" OPENSSL_VERSION_PTEXT;
EVP_CIPHER_CTX *EVP_CIPHER_CTX_new(void)
- {
- EVP_CIPHER_CTX *ctx=OPENSSL_malloc(sizeof *ctx);
- if (ctx)
- EVP_CIPHER_CTX_init(ctx);
- return ctx;
- }
+{
+ EVP_CIPHER_CTX *ctx = OPENSSL_malloc(sizeof *ctx);
+ if (ctx)
+ EVP_CIPHER_CTX_init(ctx);
+ return ctx;
+}
int EVP_CipherInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
- const unsigned char *key, const unsigned char *iv, int enc)
- {
- if (cipher)
- EVP_CIPHER_CTX_init(ctx);
- return EVP_CipherInit_ex(ctx,cipher,NULL,key,iv,enc);
- }
+ const unsigned char *key, const unsigned char *iv, int enc)
+{
+ if (cipher)
+ EVP_CIPHER_CTX_init(ctx);
+ return EVP_CipherInit_ex(ctx, cipher, NULL, key, iv, enc);
+}
int EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
- const unsigned char *in, int inl)
- {
- if (ctx->encrypt)
- return EVP_EncryptUpdate(ctx,out,outl,in,inl);
- else return EVP_DecryptUpdate(ctx,out,outl,in,inl);
- }
+ const unsigned char *in, int inl)
+{
+ if (ctx->encrypt)
+ return EVP_EncryptUpdate(ctx, out, outl, in, inl);
+ else
+ return EVP_DecryptUpdate(ctx, out, outl, in, inl);
+}
int EVP_CipherFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
- {
- if (ctx->encrypt)
- return EVP_EncryptFinal_ex(ctx,out,outl);
- else return EVP_DecryptFinal_ex(ctx,out,outl);
- }
+{
+ if (ctx->encrypt)
+ return EVP_EncryptFinal_ex(ctx, out, outl);
+ else
+ return EVP_DecryptFinal_ex(ctx, out, outl);
+}
int EVP_CipherFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
- {
- if (ctx->encrypt)
- return EVP_EncryptFinal(ctx,out,outl);
- else return EVP_DecryptFinal(ctx,out,outl);
- }
+{
+ if (ctx->encrypt)
+ return EVP_EncryptFinal(ctx, out, outl);
+ else
+ return EVP_DecryptFinal(ctx, out, outl);
+}
int EVP_EncryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
- const unsigned char *key, const unsigned char *iv)
- {
- return EVP_CipherInit(ctx, cipher, key, iv, 1);
- }
-
-int EVP_EncryptInit_ex(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher, ENGINE *impl,
- const unsigned char *key, const unsigned char *iv)
- {
- return EVP_CipherInit_ex(ctx, cipher, impl, key, iv, 1);
- }
+ const unsigned char *key, const unsigned char *iv)
+{
+ return EVP_CipherInit(ctx, cipher, key, iv, 1);
+}
+
+int EVP_EncryptInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
+ ENGINE *impl, const unsigned char *key,
+ const unsigned char *iv)
+{
+ return EVP_CipherInit_ex(ctx, cipher, impl, key, iv, 1);
+}
int EVP_DecryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
- const unsigned char *key, const unsigned char *iv)
- {
- return EVP_CipherInit(ctx, cipher, key, iv, 0);
- }
-
-int EVP_DecryptInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher, ENGINE *impl,
- const unsigned char *key, const unsigned char *iv)
- {
- return EVP_CipherInit_ex(ctx, cipher, impl, key, iv, 0);
- }
+ const unsigned char *key, const unsigned char *iv)
+{
+ return EVP_CipherInit(ctx, cipher, key, iv, 0);
+}
+
+int EVP_DecryptInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
+ ENGINE *impl, const unsigned char *key,
+ const unsigned char *iv)
+{
+ return EVP_CipherInit_ex(ctx, cipher, impl, key, iv, 0);
+}
int EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
- const unsigned char *in, int inl)
- {
- int i,j,bl;
-
- if (inl <= 0)
- {
- *outl = 0;
- return inl == 0;
- }
-
- if(ctx->buf_len == 0 && (inl&(ctx->block_mask)) == 0)
- {
- if(M_do_cipher(ctx,out,in,inl))
- {
- *outl=inl;
- return 1;
- }
- else
- {
- *outl=0;
- return 0;
- }
- }
- i=ctx->buf_len;
- bl=ctx->cipher->block_size;
- OPENSSL_assert(bl <= (int)sizeof(ctx->buf));
- if (i != 0)
- {
- if (i+inl < bl)
- {
- memcpy(&(ctx->buf[i]),in,inl);
- ctx->buf_len+=inl;
- *outl=0;
- return 1;
- }
- else
- {
- j=bl-i;
- memcpy(&(ctx->buf[i]),in,j);
- if(!M_do_cipher(ctx,out,ctx->buf,bl)) return 0;
- inl-=j;
- in+=j;
- out+=bl;
- *outl=bl;
- }
- }
- else
- *outl = 0;
- i=inl&(bl-1);
- inl-=i;
- if (inl > 0)
- {
- if(!M_do_cipher(ctx,out,in,inl)) return 0;
- *outl+=inl;
- }
-
- if (i != 0)
- memcpy(ctx->buf,&(in[inl]),i);
- ctx->buf_len=i;
- return 1;
- }
+ const unsigned char *in, int inl)
+{
+ int i, j, bl;
+
+ if (inl <= 0) {
+ *outl = 0;
+ return inl == 0;
+ }
+
+ if (ctx->buf_len == 0 && (inl & (ctx->block_mask)) == 0) {
+ if (M_do_cipher(ctx, out, in, inl)) {
+ *outl = inl;
+ return 1;
+ } else {
+ *outl = 0;
+ return 0;
+ }
+ }
+ i = ctx->buf_len;
+ bl = ctx->cipher->block_size;
+ OPENSSL_assert(bl <= (int)sizeof(ctx->buf));
+ if (i != 0) {
+ if (i + inl < bl) {
+ memcpy(&(ctx->buf[i]), in, inl);
+ ctx->buf_len += inl;
+ *outl = 0;
+ return 1;
+ } else {
+ j = bl - i;
+ memcpy(&(ctx->buf[i]), in, j);
+ if (!M_do_cipher(ctx, out, ctx->buf, bl))
+ return 0;
+ inl -= j;
+ in += j;
+ out += bl;
+ *outl = bl;
+ }
+ } else
+ *outl = 0;
+ i = inl & (bl - 1);
+ inl -= i;
+ if (inl > 0) {
+ if (!M_do_cipher(ctx, out, in, inl))
+ return 0;
+ *outl += inl;
+ }
+
+ if (i != 0)
+ memcpy(ctx->buf, &(in[inl]), i);
+ ctx->buf_len = i;
+ return 1;
+}
int EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
- {
- int ret;
- ret = EVP_EncryptFinal_ex(ctx, out, outl);
- return ret;
- }
+{
+ int ret;
+ ret = EVP_EncryptFinal_ex(ctx, out, outl);
+ return ret;
+}
int EVP_EncryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
- {
- int n,ret;
- unsigned int i, b, bl;
-
- b=ctx->cipher->block_size;
- OPENSSL_assert(b <= sizeof ctx->buf);
- if (b == 1)
- {
- *outl=0;
- return 1;
- }
- bl=ctx->buf_len;
- if (ctx->flags & EVP_CIPH_NO_PADDING)
- {
- if(bl)
- {
- EVPerr(EVP_F_EVP_ENCRYPTFINAL_EX,EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH);
- return 0;
- }
- *outl = 0;
- return 1;
- }
-
- n=b-bl;
- for (i=bl; i<b; i++)
- ctx->buf[i]=n;
- ret=M_do_cipher(ctx,out,ctx->buf,b);
-
-
- if(ret)
- *outl=b;
-
- return ret;
- }
+{
+ int n, ret;
+ unsigned int i, b, bl;
+
+ b = ctx->cipher->block_size;
+ OPENSSL_assert(b <= sizeof ctx->buf);
+ if (b == 1) {
+ *outl = 0;
+ return 1;
+ }
+ bl = ctx->buf_len;
+ if (ctx->flags & EVP_CIPH_NO_PADDING) {
+ if (bl) {
+ EVPerr(EVP_F_EVP_ENCRYPTFINAL_EX,
+ EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH);
+ return 0;
+ }
+ *outl = 0;
+ return 1;
+ }
+
+ n = b - bl;
+ for (i = bl; i < b; i++)
+ ctx->buf[i] = n;
+ ret = M_do_cipher(ctx, out, ctx->buf, b);
+
+ if (ret)
+ *outl = b;
+
+ return ret;
+}
int EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
- const unsigned char *in, int inl)
- {
- int fix_len;
- unsigned int b;
-
- if (inl <= 0)
- {
- *outl = 0;
- return inl == 0;
- }
-
- if (ctx->flags & EVP_CIPH_NO_PADDING)
- return EVP_EncryptUpdate(ctx, out, outl, in, inl);
-
- b=ctx->cipher->block_size;
- OPENSSL_assert(b <= sizeof ctx->final);
-
- if(ctx->final_used)
- {
- memcpy(out,ctx->final,b);
- out+=b;
- fix_len = 1;
- }
- else
- fix_len = 0;
-
-
- if(!EVP_EncryptUpdate(ctx,out,outl,in,inl))
- return 0;
-
- /* if we have 'decrypted' a multiple of block size, make sure
- * we have a copy of this last block */
- if (b > 1 && !ctx->buf_len)
- {
- *outl-=b;
- ctx->final_used=1;
- memcpy(ctx->final,&out[*outl],b);
- }
- else
- ctx->final_used = 0;
-
- if (fix_len)
- *outl += b;
-
- return 1;
- }
+ const unsigned char *in, int inl)
+{
+ int fix_len;
+ unsigned int b;
+
+ if (inl <= 0) {
+ *outl = 0;
+ return inl == 0;
+ }
+
+ if (ctx->flags & EVP_CIPH_NO_PADDING)
+ return EVP_EncryptUpdate(ctx, out, outl, in, inl);
+
+ b = ctx->cipher->block_size;
+ OPENSSL_assert(b <= sizeof ctx->final);
+
+ if (ctx->final_used) {
+ memcpy(out, ctx->final, b);
+ out += b;
+ fix_len = 1;
+ } else
+ fix_len = 0;
+
+ if (!EVP_EncryptUpdate(ctx, out, outl, in, inl))
+ return 0;
+
+ /*
+ * if we have 'decrypted' a multiple of block size, make sure we have a
+ * copy of this last block
+ */
+ if (b > 1 && !ctx->buf_len) {
+ *outl -= b;
+ ctx->final_used = 1;
+ memcpy(ctx->final, &out[*outl], b);
+ } else
+ ctx->final_used = 0;
+
+ if (fix_len)
+ *outl += b;
+
+ return 1;
+}
int EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
- {
- int ret;
- ret = EVP_DecryptFinal_ex(ctx, out, outl);
- return ret;
- }
+{
+ int ret;
+ ret = EVP_DecryptFinal_ex(ctx, out, outl);
+ return ret;
+}
int EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
- {
- int i,n;
- unsigned int b;
-
- *outl=0;
- b=ctx->cipher->block_size;
- if (ctx->flags & EVP_CIPH_NO_PADDING)
- {
- if(ctx->buf_len)
- {
- EVPerr(EVP_F_EVP_DECRYPTFINAL_EX,EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH);
- return 0;
- }
- *outl = 0;
- return 1;
- }
- if (b > 1)
- {
- if (ctx->buf_len || !ctx->final_used)
- {
- EVPerr(EVP_F_EVP_DECRYPTFINAL_EX,EVP_R_WRONG_FINAL_BLOCK_LENGTH);
- return(0);
- }
- OPENSSL_assert(b <= sizeof ctx->final);
- n=ctx->final[b-1];
- if (n == 0 || n > (int)b)
- {
- EVPerr(EVP_F_EVP_DECRYPTFINAL_EX,EVP_R_BAD_DECRYPT);
- return(0);
- }
- for (i=0; i<n; i++)
- {
- if (ctx->final[--b] != n)
- {
- EVPerr(EVP_F_EVP_DECRYPTFINAL_EX,EVP_R_BAD_DECRYPT);
- return(0);
- }
- }
- n=ctx->cipher->block_size-n;
- for (i=0; i<n; i++)
- out[i]=ctx->final[i];
- *outl=n;
- }
- else
- *outl=0;
- return(1);
- }
+{
+ int i, n;
+ unsigned int b;
+
+ *outl = 0;
+ b = ctx->cipher->block_size;
+ if (ctx->flags & EVP_CIPH_NO_PADDING) {
+ if (ctx->buf_len) {
+ EVPerr(EVP_F_EVP_DECRYPTFINAL_EX,
+ EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH);
+ return 0;
+ }
+ *outl = 0;
+ return 1;
+ }
+ if (b > 1) {
+ if (ctx->buf_len || !ctx->final_used) {
+ EVPerr(EVP_F_EVP_DECRYPTFINAL_EX, EVP_R_WRONG_FINAL_BLOCK_LENGTH);
+ return (0);
+ }
+ OPENSSL_assert(b <= sizeof ctx->final);
+ n = ctx->final[b - 1];
+ if (n == 0 || n > (int)b) {
+ EVPerr(EVP_F_EVP_DECRYPTFINAL_EX, EVP_R_BAD_DECRYPT);
+ return (0);
+ }
+ for (i = 0; i < n; i++) {
+ if (ctx->final[--b] != n) {
+ EVPerr(EVP_F_EVP_DECRYPTFINAL_EX, EVP_R_BAD_DECRYPT);
+ return (0);
+ }
+ }
+ n = ctx->cipher->block_size - n;
+ for (i = 0; i < n; i++)
+ out[i] = ctx->final[i];
+ *outl = n;
+ } else
+ *outl = 0;
+ return (1);
+}
void EVP_CIPHER_CTX_free(EVP_CIPHER_CTX *ctx)
- {
- if (ctx)
- {
- EVP_CIPHER_CTX_cleanup(ctx);
- OPENSSL_free(ctx);
- }
- }
+{
+ if (ctx) {
+ EVP_CIPHER_CTX_cleanup(ctx);
+ OPENSSL_free(ctx);
+ }
+}
int EVP_CIPHER_CTX_set_key_length(EVP_CIPHER_CTX *c, int keylen)
- {
- if(c->cipher->flags & EVP_CIPH_CUSTOM_KEY_LENGTH)
- return EVP_CIPHER_CTX_ctrl(c, EVP_CTRL_SET_KEY_LENGTH, keylen, NULL);
- if(c->key_len == keylen) return 1;
- if((keylen > 0) && (c->cipher->flags & EVP_CIPH_VARIABLE_LENGTH))
- {
- c->key_len = keylen;
- return 1;
- }
- EVPerr(EVP_F_EVP_CIPHER_CTX_SET_KEY_LENGTH,EVP_R_INVALID_KEY_LENGTH);
- return 0;
- }
+{
+ if (c->cipher->flags & EVP_CIPH_CUSTOM_KEY_LENGTH)
+ return EVP_CIPHER_CTX_ctrl(c, EVP_CTRL_SET_KEY_LENGTH, keylen, NULL);
+ if (c->key_len == keylen)
+ return 1;
+ if ((keylen > 0) && (c->cipher->flags & EVP_CIPH_VARIABLE_LENGTH)) {
+ c->key_len = keylen;
+ return 1;
+ }
+ EVPerr(EVP_F_EVP_CIPHER_CTX_SET_KEY_LENGTH, EVP_R_INVALID_KEY_LENGTH);
+ return 0;
+}
int EVP_CIPHER_CTX_set_padding(EVP_CIPHER_CTX *ctx, int pad)
- {
- if (pad) ctx->flags &= ~EVP_CIPH_NO_PADDING;
- else ctx->flags |= EVP_CIPH_NO_PADDING;
- return 1;
- }
+{
+ if (pad)
+ ctx->flags &= ~EVP_CIPH_NO_PADDING;
+ else
+ ctx->flags |= EVP_CIPH_NO_PADDING;
+ return 1;
+}
int EVP_CIPHER_CTX_rand_key(EVP_CIPHER_CTX *ctx, unsigned char *key)
- {
- if (ctx->cipher->flags & EVP_CIPH_RAND_KEY)
- return EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_RAND_KEY, 0, key);
- if (RAND_bytes(key, ctx->key_len) <= 0)
- return 0;
- return 1;
- }
+{
+ if (ctx->cipher->flags & EVP_CIPH_RAND_KEY)
+ return EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_RAND_KEY, 0, key);
+ if (RAND_bytes(key, ctx->key_len) <= 0)
+ return 0;
+ return 1;
+}
#ifndef OPENSSL_NO_ENGINE
-#ifdef OPENSSL_FIPS
-
-static int do_evp_enc_engine_full(EVP_CIPHER_CTX *ctx, const EVP_CIPHER **pcipher, ENGINE *impl)
- {
- if(impl)
- {
- if (!ENGINE_init(impl))
- {
- EVPerr(EVP_F_DO_EVP_ENC_ENGINE_FULL, EVP_R_INITIALIZATION_ERROR);
- return 0;
- }
- }
- else
- /* Ask if an ENGINE is reserved for this job */
- impl = ENGINE_get_cipher_engine((*pcipher)->nid);
- if(impl)
- {
- /* There's an ENGINE for this job ... (apparently) */
- const EVP_CIPHER *c = ENGINE_get_cipher(impl, (*pcipher)->nid);
- if(!c)
- {
- /* One positive side-effect of US's export
- * control history, is that we should at least
- * be able to avoid using US mispellings of
- * "initialisation"? */
- EVPerr(EVP_F_DO_EVP_ENC_ENGINE_FULL, EVP_R_INITIALIZATION_ERROR);
- return 0;
- }
- /* We'll use the ENGINE's private cipher definition */
- *pcipher = c;
- /* Store the ENGINE functional reference so we know
- * 'cipher' came from an ENGINE and we need to release
- * it when done. */
- ctx->engine = impl;
- }
- else
- ctx->engine = NULL;
- return 1;
- }
+# ifdef OPENSSL_FIPS
+
+static int do_evp_enc_engine_full(EVP_CIPHER_CTX *ctx,
+ const EVP_CIPHER **pcipher, ENGINE *impl)
+{
+ if (impl) {
+ if (!ENGINE_init(impl)) {
+ EVPerr(EVP_F_DO_EVP_ENC_ENGINE_FULL, EVP_R_INITIALIZATION_ERROR);
+ return 0;
+ }
+ } else
+ /* Ask if an ENGINE is reserved for this job */
+ impl = ENGINE_get_cipher_engine((*pcipher)->nid);
+ if (impl) {
+ /* There's an ENGINE for this job ... (apparently) */
+ const EVP_CIPHER *c = ENGINE_get_cipher(impl, (*pcipher)->nid);
+ if (!c) {
+ /*
+ * One positive side-effect of US's export control history, is
+ * that we should at least be able to avoid using US mispellings
+ * of "initialisation"?
+ */
+ EVPerr(EVP_F_DO_EVP_ENC_ENGINE_FULL, EVP_R_INITIALIZATION_ERROR);
+ return 0;
+ }
+ /* We'll use the ENGINE's private cipher definition */
+ *pcipher = c;
+ /*
+ * Store the ENGINE functional reference so we know 'cipher' came
+ * from an ENGINE and we need to release it when done.
+ */
+ ctx->engine = impl;
+ } else
+ ctx->engine = NULL;
+ return 1;
+}
void int_EVP_CIPHER_init_engine_callbacks(void)
- {
- int_EVP_CIPHER_set_engine_callbacks(
- ENGINE_finish, do_evp_enc_engine_full);
- }
+{
+ int_EVP_CIPHER_set_engine_callbacks(ENGINE_finish,
+ do_evp_enc_engine_full);
+}
-#endif
+# endif
#endif
projects / openssl.git / blobdiff