forked from cory/tildefriends
443 lines
17 KiB
C
443 lines
17 KiB
C
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/*
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* Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <openssl/evp.h>
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#include "internal/refcount.h"
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/*
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* Don't free up md_ctx->pctx in EVP_MD_CTX_reset, use the reserved flag
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* values in evp.h
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*/
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#define EVP_MD_CTX_FLAG_KEEP_PKEY_CTX 0x0400
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struct evp_pkey_ctx_st {
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/* Method associated with this operation */
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const EVP_PKEY_METHOD *pmeth;
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/* Engine that implements this method or NULL if builtin */
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ENGINE *engine;
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/* Key: may be NULL */
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EVP_PKEY *pkey;
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/* Peer key for key agreement, may be NULL */
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EVP_PKEY *peerkey;
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/* Actual operation */
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int operation;
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/* Algorithm specific data */
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void *data;
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/* Application specific data */
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void *app_data;
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/* Keygen callback */
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EVP_PKEY_gen_cb *pkey_gencb;
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/* implementation specific keygen data */
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int *keygen_info;
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int keygen_info_count;
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} /* EVP_PKEY_CTX */ ;
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#define EVP_PKEY_FLAG_DYNAMIC 1
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struct evp_pkey_method_st {
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int pkey_id;
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int flags;
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int (*init) (EVP_PKEY_CTX *ctx);
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int (*copy) (EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src);
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void (*cleanup) (EVP_PKEY_CTX *ctx);
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int (*paramgen_init) (EVP_PKEY_CTX *ctx);
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int (*paramgen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
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int (*keygen_init) (EVP_PKEY_CTX *ctx);
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int (*keygen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
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int (*sign_init) (EVP_PKEY_CTX *ctx);
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int (*sign) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
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const unsigned char *tbs, size_t tbslen);
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int (*verify_init) (EVP_PKEY_CTX *ctx);
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int (*verify) (EVP_PKEY_CTX *ctx,
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const unsigned char *sig, size_t siglen,
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const unsigned char *tbs, size_t tbslen);
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int (*verify_recover_init) (EVP_PKEY_CTX *ctx);
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int (*verify_recover) (EVP_PKEY_CTX *ctx,
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unsigned char *rout, size_t *routlen,
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const unsigned char *sig, size_t siglen);
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int (*signctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
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int (*signctx) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
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EVP_MD_CTX *mctx);
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int (*verifyctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
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int (*verifyctx) (EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen,
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EVP_MD_CTX *mctx);
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int (*encrypt_init) (EVP_PKEY_CTX *ctx);
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int (*encrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
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const unsigned char *in, size_t inlen);
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int (*decrypt_init) (EVP_PKEY_CTX *ctx);
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int (*decrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
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const unsigned char *in, size_t inlen);
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int (*derive_init) (EVP_PKEY_CTX *ctx);
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int (*derive) (EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
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int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
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int (*ctrl_str) (EVP_PKEY_CTX *ctx, const char *type, const char *value);
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int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
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const unsigned char *tbs, size_t tbslen);
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int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
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size_t siglen, const unsigned char *tbs,
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size_t tbslen);
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int (*check) (EVP_PKEY *pkey);
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int (*public_check) (EVP_PKEY *pkey);
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int (*param_check) (EVP_PKEY *pkey);
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int (*digest_custom) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
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} /* EVP_PKEY_METHOD */ ;
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DEFINE_STACK_OF_CONST(EVP_PKEY_METHOD)
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void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx);
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extern const EVP_PKEY_METHOD cmac_pkey_meth;
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extern const EVP_PKEY_METHOD dh_pkey_meth;
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extern const EVP_PKEY_METHOD dhx_pkey_meth;
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extern const EVP_PKEY_METHOD dsa_pkey_meth;
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extern const EVP_PKEY_METHOD ec_pkey_meth;
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extern const EVP_PKEY_METHOD sm2_pkey_meth;
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extern const EVP_PKEY_METHOD ecx25519_pkey_meth;
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extern const EVP_PKEY_METHOD ecx448_pkey_meth;
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extern const EVP_PKEY_METHOD ed25519_pkey_meth;
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extern const EVP_PKEY_METHOD ed448_pkey_meth;
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extern const EVP_PKEY_METHOD hmac_pkey_meth;
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extern const EVP_PKEY_METHOD rsa_pkey_meth;
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extern const EVP_PKEY_METHOD rsa_pss_pkey_meth;
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extern const EVP_PKEY_METHOD scrypt_pkey_meth;
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extern const EVP_PKEY_METHOD tls1_prf_pkey_meth;
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extern const EVP_PKEY_METHOD hkdf_pkey_meth;
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extern const EVP_PKEY_METHOD poly1305_pkey_meth;
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extern const EVP_PKEY_METHOD siphash_pkey_meth;
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struct evp_md_st {
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int type;
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int pkey_type;
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int md_size;
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unsigned long flags;
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int (*init) (EVP_MD_CTX *ctx);
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int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
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int (*final) (EVP_MD_CTX *ctx, unsigned char *md);
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int (*copy) (EVP_MD_CTX *to, const EVP_MD_CTX *from);
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int (*cleanup) (EVP_MD_CTX *ctx);
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int block_size;
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int ctx_size; /* how big does the ctx->md_data need to be */
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/* control function */
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int (*md_ctrl) (EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
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} /* EVP_MD */ ;
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struct evp_cipher_st {
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int nid;
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int block_size;
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/* Default value for variable length ciphers */
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int key_len;
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int iv_len;
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/* Various flags */
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unsigned long flags;
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/* init key */
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int (*init) (EVP_CIPHER_CTX *ctx, const unsigned char *key,
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const unsigned char *iv, int enc);
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/* encrypt/decrypt data */
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int (*do_cipher) (EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t inl);
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/* cleanup ctx */
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int (*cleanup) (EVP_CIPHER_CTX *);
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/* how big ctx->cipher_data needs to be */
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int ctx_size;
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/* Populate a ASN1_TYPE with parameters */
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int (*set_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
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/* Get parameters from a ASN1_TYPE */
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int (*get_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
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/* Miscellaneous operations */
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int (*ctrl) (EVP_CIPHER_CTX *, int type, int arg, void *ptr);
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/* Application data */
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void *app_data;
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} /* EVP_CIPHER */ ;
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/* Macros to code block cipher wrappers */
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/* Wrapper functions for each cipher mode */
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#define EVP_C_DATA(kstruct, ctx) \
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((kstruct *)EVP_CIPHER_CTX_get_cipher_data(ctx))
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#define BLOCK_CIPHER_ecb_loop() \
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size_t i, bl; \
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bl = EVP_CIPHER_CTX_cipher(ctx)->block_size; \
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if (inl < bl) return 1;\
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inl -= bl; \
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for (i=0; i <= inl; i+=bl)
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#define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
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static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
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{\
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BLOCK_CIPHER_ecb_loop() \
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cprefix##_ecb_encrypt(in + i, out + i, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_encrypting(ctx)); \
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return 1;\
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}
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#define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2))
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#define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
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static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
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{\
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while(inl>=EVP_MAXCHUNK) {\
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int num = EVP_CIPHER_CTX_num(ctx);\
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cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
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EVP_CIPHER_CTX_set_num(ctx, num);\
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inl-=EVP_MAXCHUNK;\
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in +=EVP_MAXCHUNK;\
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out+=EVP_MAXCHUNK;\
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}\
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if (inl) {\
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int num = EVP_CIPHER_CTX_num(ctx);\
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cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
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EVP_CIPHER_CTX_set_num(ctx, num);\
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}\
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return 1;\
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}
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#define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
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static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
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{\
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while(inl>=EVP_MAXCHUNK) \
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{\
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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));\
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inl-=EVP_MAXCHUNK;\
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in +=EVP_MAXCHUNK;\
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out+=EVP_MAXCHUNK;\
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}\
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if (inl)\
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cprefix##_cbc_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\
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return 1;\
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}
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#define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
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static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
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{\
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size_t chunk = EVP_MAXCHUNK;\
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if (cbits == 1) chunk >>= 3;\
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if (inl < chunk) chunk = inl;\
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while (inl && inl >= chunk)\
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{\
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int num = EVP_CIPHER_CTX_num(ctx);\
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cprefix##_cfb##cbits##_encrypt(in, out, (long) \
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((cbits == 1) \
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&& !EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS) \
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? chunk*8 : chunk), \
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&EVP_C_DATA(kstruct, ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx),\
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&num, EVP_CIPHER_CTX_encrypting(ctx));\
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EVP_CIPHER_CTX_set_num(ctx, num);\
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inl -= chunk;\
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in += chunk;\
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out += chunk;\
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if (inl < chunk) chunk = inl;\
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}\
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return 1;\
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}
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#define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
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BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
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BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
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BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
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BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)
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#define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
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key_len, iv_len, flags, init_key, cleanup, \
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set_asn1, get_asn1, ctrl) \
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static const EVP_CIPHER cname##_##mode = { \
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nid##_##nmode, block_size, key_len, iv_len, \
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flags | EVP_CIPH_##MODE##_MODE, \
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init_key, \
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cname##_##mode##_cipher, \
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cleanup, \
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sizeof(kstruct), \
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set_asn1, get_asn1,\
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ctrl, \
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NULL \
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}; \
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const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }
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#define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
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iv_len, flags, init_key, cleanup, set_asn1, \
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get_asn1, ctrl) \
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BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
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iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
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#define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \
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iv_len, cbits, flags, init_key, cleanup, \
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set_asn1, get_asn1, ctrl) \
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BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
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key_len, iv_len, flags, init_key, cleanup, set_asn1, \
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get_asn1, ctrl)
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#define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \
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iv_len, cbits, flags, init_key, cleanup, \
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set_asn1, get_asn1, ctrl) \
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BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
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key_len, iv_len, flags, init_key, cleanup, set_asn1, \
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get_asn1, ctrl)
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#define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
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flags, init_key, cleanup, set_asn1, \
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get_asn1, ctrl) \
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BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
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0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
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#define BLOCK_CIPHER_defs(cname, kstruct, \
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nid, block_size, key_len, iv_len, cbits, flags, \
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init_key, cleanup, set_asn1, get_asn1, ctrl) \
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BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
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init_key, cleanup, set_asn1, get_asn1, ctrl) \
|
||
|
|
BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
|
||
|
|
flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
|
||
|
|
BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
|
||
|
|
flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
|
||
|
|
BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
|
||
|
|
init_key, cleanup, set_asn1, get_asn1, ctrl)
|
||
|
|
|
||
|
|
/*-
|
||
|
|
#define BLOCK_CIPHER_defs(cname, kstruct, \
|
||
|
|
nid, block_size, key_len, iv_len, flags,\
|
||
|
|
init_key, cleanup, set_asn1, get_asn1, ctrl)\
|
||
|
|
static const EVP_CIPHER cname##_cbc = {\
|
||
|
|
nid##_cbc, block_size, key_len, iv_len, \
|
||
|
|
flags | EVP_CIPH_CBC_MODE,\
|
||
|
|
init_key,\
|
||
|
|
cname##_cbc_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##_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)
|
||
|
|
|
||
|
|
|
||
|
|
# ifndef OPENSSL_NO_EC
|
||
|
|
|
||
|
|
#define X25519_KEYLEN 32
|
||
|
|
#define X448_KEYLEN 56
|
||
|
|
#define ED448_KEYLEN 57
|
||
|
|
|
||
|
|
#define MAX_KEYLEN ED448_KEYLEN
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
unsigned char pubkey[MAX_KEYLEN];
|
||
|
|
unsigned char *privkey;
|
||
|
|
} ECX_KEY;
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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;
|
||
|
|
CRYPTO_REF_COUNT references;
|
||
|
|
const EVP_PKEY_ASN1_METHOD *ameth;
|
||
|
|
ENGINE *engine;
|
||
|
|
ENGINE *pmeth_engine; /* If not NULL public key ENGINE to use */
|
||
|
|
union {
|
||
|
|
void *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 */
|
||
|
|
ECX_KEY *ecx; /* X25519, X448, Ed25519, Ed448 */
|
||
|
|
# endif
|
||
|
|
} pkey;
|
||
|
|
int save_parameters;
|
||
|
|
STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
|
||
|
|
CRYPTO_RWLOCK *lock;
|
||
|
|
} /* EVP_PKEY */ ;
|
||
|
|
|
||
|
|
|
||
|
|
void openssl_add_all_ciphers_int(void);
|
||
|
|
void openssl_add_all_digests_int(void);
|
||
|
|
void evp_cleanup_int(void);
|
||
|
|
void evp_app_cleanup_int(void);
|
||
|
|
|
||
|
|
/* Pulling defines out of C source files */
|
||
|
|
|
||
|
|
#define EVP_RC4_KEY_SIZE 16
|
||
|
|
#ifndef TLS1_1_VERSION
|
||
|
|
# define TLS1_1_VERSION 0x0302
|
||
|
|
#endif
|
||
|
|
|
||
|
|
void evp_encode_ctx_set_flags(EVP_ENCODE_CTX *ctx, unsigned int flags);
|
||
|
|
|
||
|
|
/* EVP_ENCODE_CTX flags */
|
||
|
|
/* Don't generate new lines when encoding */
|
||
|
|
#define EVP_ENCODE_CTX_NO_NEWLINES 1
|
||
|
|
/* Use the SRP base64 alphabet instead of the standard one */
|
||
|
|
#define EVP_ENCODE_CTX_USE_SRP_ALPHABET 2
|