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openssl/crypto/evp/evp_locl.h

 /* evp_locl.h */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project 2000.
  */
 /* ====================================================================
  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ skipping 43 matching lines @@
  * (eay@cryptsoft.com).  This product includes software written by Tim
  * Hudson (tjh@cryptsoft.com).
  *
  */
 
 /* Macros to code block cipher wrappers */
 
 /* Wrapper functions for each cipher mode */
 
 #define BLOCK_CIPHER_ecb_loop() \
-        unsigned int i, bl; \
+        size_t i, bl; \
         bl = ctx->cipher->block_size;\
         if(inl < bl) return 1;\
         inl -= bl; \
         for(i=0; i <= inl; i+=bl) 
 
 #define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
-static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
+static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
 {\
         BLOCK_CIPHER_ecb_loop() \
                 cprefix##_ecb_encrypt(in + i, out + i, &((kstruct *)ctx->cipher_data)->ksched, ctx->encrypt);\
         return 1;\
 }
 
+#define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2))
+
 #define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
-static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
+static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
 {\
-        cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\
+        while(inl>=EVP_MAXCHUNK)\
+            {\
+            cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\
+            inl-=EVP_MAXCHUNK;\
+            in +=EVP_MAXCHUNK;\
+            out+=EVP_MAXCHUNK;\
+            }\
+        if (inl)\
+            cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\
         return 1;\
 }
 
 #define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
-static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
+static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
 {\
-        cprefix##_cbc_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\
+        while(inl>=EVP_MAXCHUNK) \
+            {\
+            cprefix##_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\
+            inl-=EVP_MAXCHUNK;\
+            in +=EVP_MAXCHUNK;\
+            out+=EVP_MAXCHUNK;\
+            }\
+        if (inl)\
+            cprefix##_cbc_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\
         return 1;\
 }
 
 #define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
-static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
+static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
 {\
-        cprefix##_cfb##cbits##_encrypt(in, out, (long)((cbits==1) && !(ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) ?inl*8:inl), &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num, ctx->encrypt);\
+        size_t chunk=EVP_MAXCHUNK;\
+        if (cbits==1)  chunk>>=3;\
+        if (inl<chunk) chunk=inl;\
+        while(inl && inl>=chunk)\
+            {\
+            cprefix##_cfb##cbits##_encrypt(in, out, (long)((cbits==1) && !(ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) ?inl*8:inl), &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num, ctx->encrypt);\
+            inl-=chunk;\
+            in +=chunk;\
+            out+=chunk;\
+            if(inl<chunk) chunk=inl;\
+            }\
         return 1;\
 }
 
 #define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
         BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
         BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
         BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
         BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)
 
 #define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
@@ skipping 113 matching lines @@
                                block_size, key_len, iv_len, cbits, \
                                flags, init_key, \
                                cleanup, set_asn1, get_asn1, ctrl) \
         BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
         BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \
                           cbits, flags, init_key, cleanup, set_asn1, \
                           get_asn1, ctrl)
 
 #define EVP_C_DATA(kstruct, ctx)        ((kstruct *)(ctx)->cipher_data)
 
-#define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len,fl) \
+#define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len) \
         BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \
         BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \
                              NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \
-                             (fl)|EVP_CIPH_FLAG_DEFAULT_ASN1, \
-                             cipher##_init_key, NULL, NULL, NULL, NULL)
+                             0, cipher##_init_key, NULL, \
+                             EVP_CIPHER_set_asn1_iv, \
+                             EVP_CIPHER_get_asn1_iv, \
+                             NULL)
 
-#ifdef OPENSSL_FIPS
-#define RC2_set_key     private_RC2_set_key
-#define RC4_set_key     private_RC4_set_key
-#define CAST_set_key    private_CAST_set_key
-#define RC5_32_set_key  private_RC5_32_set_key
-#define BF_set_key      private_BF_set_key
-#define Camellia_set_key private_Camellia_set_key
-#define idea_set_encrypt_key private_idea_set_encrypt_key
+struct evp_pkey_ctx_st
+        {
+        /* Method associated with this operation */
+        const EVP_PKEY_METHOD *pmeth;
+        /* Engine that implements this method or NULL if builtin */
+        ENGINE *engine;
+        /* Key: may be NULL */
+        EVP_PKEY *pkey;
+        /* Peer key for key agreement, may be NULL */
+        EVP_PKEY *peerkey;
+        /* Actual operation */
+        int operation;
+        /* Algorithm specific data */
+        void *data;
+        /* Application specific data */
+        void *app_data;
+        /* Keygen callback */
+        EVP_PKEY_gen_cb *pkey_gencb;
+        /* implementation specific keygen data */
+        int *keygen_info;
+        int keygen_info_count;
+        } /* EVP_PKEY_CTX */;
 
-#define MD5_Init        private_MD5_Init
-#define MD4_Init        private_MD4_Init
-#define MD2_Init        private_MD2_Init
-#define MDC2_Init       private_MDC2_Init
-#define SHA_Init        private_SHA_Init
+#define EVP_PKEY_FLAG_DYNAMIC   1
 
-#endif
+struct evp_pkey_method_st
+        {
+        int pkey_id;
+        int flags;
 
+        int (*init)(EVP_PKEY_CTX *ctx);
+        int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src);
+        void (*cleanup)(EVP_PKEY_CTX *ctx);
+
+        int (*paramgen_init)(EVP_PKEY_CTX *ctx);
+        int (*paramgen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
+
+        int (*keygen_init)(EVP_PKEY_CTX *ctx);
+        int (*keygen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
+
+        int (*sign_init)(EVP_PKEY_CTX *ctx);
+        int (*sign)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
+                                const unsigned char *tbs, size_t tbslen);
+
+        int (*verify_init)(EVP_PKEY_CTX *ctx);
+        int (*verify)(EVP_PKEY_CTX *ctx,
+                                const unsigned char *sig, size_t siglen,
+                                const unsigned char *tbs, size_t tbslen);
+
+        int (*verify_recover_init)(EVP_PKEY_CTX *ctx);
+        int (*verify_recover)(EVP_PKEY_CTX *ctx,
+                                unsigned char *rout, size_t *routlen,
+                                const unsigned char *sig, size_t siglen);
+
+        int (*signctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
+        int (*signctx)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
+                                        EVP_MD_CTX *mctx);
+
+        int (*verifyctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
+        int (*verifyctx)(EVP_PKEY_CTX *ctx, const unsigned char *sig,int siglen,
+                                        EVP_MD_CTX *mctx);
+
+        int (*encrypt_init)(EVP_PKEY_CTX *ctx);
+        int (*encrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
+                                        const unsigned char *in, size_t inlen);
+
+        int (*decrypt_init)(EVP_PKEY_CTX *ctx);
+        int (*decrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
+                                        const unsigned char *in, size_t inlen);
+
+        int (*derive_init)(EVP_PKEY_CTX *ctx);
+        int (*derive)(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
+
+        int (*ctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
+        int (*ctrl_str)(EVP_PKEY_CTX *ctx, const char *type, const char *value);
+
+
+        } /* EVP_PKEY_METHOD */;
+
+void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx);