/* * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project * 2015. */ /* ==================================================================== * Copyright (c) 2015 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: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * licensing@OpenSSL.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT 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. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */ 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 EVP_PKEY_FLAG_DYNAMIC 1 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 */ ; DEFINE_STACK_OF_CONST(EVP_PKEY_METHOD) void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx); extern const EVP_PKEY_METHOD cmac_pkey_meth; extern const EVP_PKEY_METHOD dh_pkey_meth; extern const EVP_PKEY_METHOD dhx_pkey_meth; extern const EVP_PKEY_METHOD dsa_pkey_meth; extern const EVP_PKEY_METHOD ec_pkey_meth; extern const EVP_PKEY_METHOD hmac_pkey_meth; extern const EVP_PKEY_METHOD rsa_pkey_meth; extern const EVP_PKEY_METHOD tls1_prf_pkey_meth; extern const EVP_PKEY_METHOD hkdf_pkey_meth; struct evp_md_st { int type; int pkey_type; int md_size; unsigned long flags; int (*init) (EVP_MD_CTX *ctx); int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count); int (*final) (EVP_MD_CTX *ctx, unsigned char *md); int (*copy) (EVP_MD_CTX *to, const EVP_MD_CTX *from); int (*cleanup) (EVP_MD_CTX *ctx); int block_size; int ctx_size; /* how big does the ctx->md_data need to be */ /* control function */ int (*md_ctrl) (EVP_MD_CTX *ctx, int cmd, int p1, void *p2); } /* EVP_MD */ ; struct evp_cipher_st { int nid; int block_size; /* Default value for variable length ciphers */ int key_len; int iv_len; /* Various flags */ unsigned long flags; /* init key */ int (*init) (EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc); /* encrypt/decrypt data */ int (*do_cipher) (EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl); /* cleanup ctx */ int (*cleanup) (EVP_CIPHER_CTX *); /* how big ctx->cipher_data needs to be */ int ctx_size; /* Populate a ASN1_TYPE with parameters */ int (*set_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *); /* Get parameters from a ASN1_TYPE */ int (*get_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *); /* Miscellaneous operations */ int (*ctrl) (EVP_CIPHER_CTX *, int type, int arg, void *ptr); /* Application data */ void *app_data; } /* EVP_CIPHER */ ; /* Macros to code block cipher wrappers */ /* Wrapper functions for each cipher mode */ #define EVP_C_DATA(kstruct, ctx) \ ((kstruct *)EVP_CIPHER_CTX_get_cipher_data(ctx)) #define BLOCK_CIPHER_ecb_loop() \ size_t i, bl; \ bl = EVP_CIPHER_CTX_cipher(ctx)->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, size_t inl) \ {\ BLOCK_CIPHER_ecb_loop() \ cprefix##_ecb_encrypt(in + i, out + i, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_encrypting(ctx)); \ 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, size_t inl) \ {\ while(inl>=EVP_MAXCHUNK) {\ int num = EVP_CIPHER_CTX_num(ctx);\ cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \ EVP_CIPHER_CTX_set_num(ctx, num);\ inl-=EVP_MAXCHUNK;\ in +=EVP_MAXCHUNK;\ out+=EVP_MAXCHUNK;\ }\ if (inl) {\ int num = EVP_CIPHER_CTX_num(ctx);\ cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \ EVP_CIPHER_CTX_set_num(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, size_t inl) \ {\ while(inl>=EVP_MAXCHUNK) \ {\ cprefix##_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\ inl-=EVP_MAXCHUNK;\ in +=EVP_MAXCHUNK;\ out+=EVP_MAXCHUNK;\ }\ if (inl)\ cprefix##_cbc_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\ 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, size_t inl) \ {\ size_t chunk=EVP_MAXCHUNK;\ if (cbits==1) chunk>>=3;\ if (inl=chunk)\ {\ int num = EVP_CIPHER_CTX_num(ctx);\ cprefix##_cfb##cbits##_encrypt(in, out, (long)((cbits==1) && !EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS) ?inl*8:inl), &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx)); \ EVP_CIPHER_CTX_set_num(ctx, num);\ inl-=chunk;\ in +=chunk;\ out+=chunk;\ if(inlc))+\ sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ set_asn1, get_asn1,\ ctrl, \ NULL \ };\ const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\ static const EVP_CIPHER cname##_cfb = {\ nid##_cfb64, 1, key_len, iv_len, \ flags | EVP_CIPH_CFB_MODE,\ init_key,\ cname##_cfb_cipher,\ cleanup,\ sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ set_asn1, get_asn1,\ ctrl,\ NULL \ };\ const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\ static const EVP_CIPHER cname##_ofb = {\ nid##_ofb64, 1, key_len, iv_len, \ flags | EVP_CIPH_OFB_MODE,\ init_key,\ cname##_ofb_cipher,\ cleanup,\ sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ set_asn1, get_asn1,\ ctrl,\ NULL \ };\ const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\ static const EVP_CIPHER cname##_ecb = {\ nid##_ecb, block_size, key_len, iv_len, \ flags | EVP_CIPH_ECB_MODE,\ init_key,\ cname##_ecb_cipher,\ cleanup,\ sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ set_asn1, get_asn1,\ ctrl,\ NULL \ };\ const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; } */ #define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \ 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 IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len,fl) \ 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) /* * Type needs to be a bit field Sub-type needs to be for variations on the * method, as in, can it do arbitrary encryption.... */ struct evp_pkey_st { int type; int save_type; int references; const EVP_PKEY_ASN1_METHOD *ameth; ENGINE *engine; union { char *ptr; # ifndef OPENSSL_NO_RSA struct rsa_st *rsa; /* RSA */ # endif # ifndef OPENSSL_NO_DSA struct dsa_st *dsa; /* DSA */ # endif # ifndef OPENSSL_NO_DH struct dh_st *dh; /* DH */ # endif # ifndef OPENSSL_NO_EC struct ec_key_st *ec; /* ECC */ # endif } pkey; int save_parameters; STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */ CRYPTO_RWLOCK *lock; } /* EVP_PKEY */ ; void openssl_add_all_ciphers_internal(void); void openssl_add_all_digests_internal(void); void evp_cleanup_intern(void);