--- /dev/null
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * 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:
+ * 1. Redistributions of source code must retain the 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 acknowledgement:
+ * "This product includes cryptographic software written by
+ * 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
+ * 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
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR 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.
+ *
+ * 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
+ * [including the GNU Public Licence.] */
+
+#ifndef OPENSSL_HEADER_EVP_INTERNAL_H
+#define OPENSSL_HEADER_EVP_INTERNAL_H
+
+#include <openssl/base.h>
+
+#include <openssl/rsa.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+
+struct evp_pkey_asn1_method_st {
+ int pkey_id;
+ uint8_t oid[9];
+ uint8_t oid_len;
+
+ // pub_decode decodes |params| and |key| as a SubjectPublicKeyInfo
+ // and writes the result into |out|. It returns one on success and zero on
+ // error. |params| is the AlgorithmIdentifier after the OBJECT IDENTIFIER
+ // type field, and |key| is the contents of the subjectPublicKey with the
+ // leading padding byte checked and removed. Although X.509 uses BIT STRINGs
+ // to represent SubjectPublicKeyInfo, every key type defined encodes the key
+ // as a byte string with the same conversion to BIT STRING.
+ int (*pub_decode)(EVP_PKEY *out, CBS *params, CBS *key);
+
+ // pub_encode encodes |key| as a SubjectPublicKeyInfo and appends the result
+ // to |out|. It returns one on success and zero on error.
+ int (*pub_encode)(CBB *out, const EVP_PKEY *key);
+
+ int (*pub_cmp)(const EVP_PKEY *a, const EVP_PKEY *b);
+
+ // priv_decode decodes |params| and |key| as a PrivateKeyInfo and writes the
+ // result into |out|. It returns one on success and zero on error. |params| is
+ // the AlgorithmIdentifier after the OBJECT IDENTIFIER type field, and |key|
+ // is the contents of the OCTET STRING privateKey field.
+ int (*priv_decode)(EVP_PKEY *out, CBS *params, CBS *key);
+
+ // priv_encode encodes |key| as a PrivateKeyInfo and appends the result to
+ // |out|. It returns one on success and zero on error.
+ int (*priv_encode)(CBB *out, const EVP_PKEY *key);
+
+ // pkey_opaque returns 1 if the |pk| is opaque. Opaque keys are backed by
+ // custom implementations which do not expose key material and parameters.
+ int (*pkey_opaque)(const EVP_PKEY *pk);
+
+ int (*pkey_size)(const EVP_PKEY *pk);
+ int (*pkey_bits)(const EVP_PKEY *pk);
+
+ int (*param_missing)(const EVP_PKEY *pk);
+ int (*param_copy)(EVP_PKEY *to, const EVP_PKEY *from);
+ int (*param_cmp)(const EVP_PKEY *a, const EVP_PKEY *b);
+
+ void (*pkey_free)(EVP_PKEY *pkey);
+} /* EVP_PKEY_ASN1_METHOD */;
+
+
+#define EVP_PKEY_OP_UNDEFINED 0
+#define EVP_PKEY_OP_KEYGEN (1 << 2)
+#define EVP_PKEY_OP_SIGN (1 << 3)
+#define EVP_PKEY_OP_VERIFY (1 << 4)
+#define EVP_PKEY_OP_VERIFYRECOVER (1 << 5)
+#define EVP_PKEY_OP_ENCRYPT (1 << 6)
+#define EVP_PKEY_OP_DECRYPT (1 << 7)
+#define EVP_PKEY_OP_DERIVE (1 << 8)
+
+#define EVP_PKEY_OP_TYPE_SIG \
+ (EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY | EVP_PKEY_OP_VERIFYRECOVER)
+
+#define EVP_PKEY_OP_TYPE_CRYPT (EVP_PKEY_OP_ENCRYPT | EVP_PKEY_OP_DECRYPT)
+
+#define EVP_PKEY_OP_TYPE_NOGEN \
+ (EVP_PKEY_OP_SIG | EVP_PKEY_OP_CRYPT | EVP_PKEY_OP_DERIVE)
+
+#define EVP_PKEY_OP_TYPE_GEN EVP_PKEY_OP_KEYGEN
+
+// EVP_PKEY_CTX_ctrl performs |cmd| on |ctx|. The |keytype| and |optype|
+// arguments can be -1 to specify that any type and operation are acceptable,
+// otherwise |keytype| must match the type of |ctx| and the bits of |optype|
+// must intersect the operation flags set on |ctx|.
+//
+// The |p1| and |p2| arguments depend on the value of |cmd|.
+//
+// It returns one on success and zero on error.
+OPENSSL_EXPORT int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
+ int cmd, int p1, void *p2);
+
+#define EVP_PKEY_CTRL_MD 1
+#define EVP_PKEY_CTRL_GET_MD 2
+
+// EVP_PKEY_CTRL_PEER_KEY is called with different values of |p1|:
+// 0: Is called from |EVP_PKEY_derive_set_peer| and |p2| contains a peer key.
+// If the return value is <= 0, the key is rejected.
+// 1: Is called at the end of |EVP_PKEY_derive_set_peer| and |p2| contains a
+// peer key. If the return value is <= 0, the key is rejected.
+// 2: Is called with |p2| == NULL to test whether the peer's key was used.
+// (EC)DH always return one in this case.
+// 3: Is called with |p2| == NULL to set whether the peer's key was used.
+// (EC)DH always return one in this case. This was only used for GOST.
+#define EVP_PKEY_CTRL_PEER_KEY 3
+
+// EVP_PKEY_ALG_CTRL is the base value from which key-type specific ctrl
+// commands are numbered.
+#define EVP_PKEY_ALG_CTRL 0x1000
+
+#define EVP_PKEY_CTRL_RSA_PADDING (EVP_PKEY_ALG_CTRL + 1)
+#define EVP_PKEY_CTRL_GET_RSA_PADDING (EVP_PKEY_ALG_CTRL + 2)
+#define EVP_PKEY_CTRL_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 3)
+#define EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 4)
+#define EVP_PKEY_CTRL_RSA_KEYGEN_BITS (EVP_PKEY_ALG_CTRL + 5)
+#define EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP (EVP_PKEY_ALG_CTRL + 6)
+#define EVP_PKEY_CTRL_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 7)
+#define EVP_PKEY_CTRL_GET_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 8)
+#define EVP_PKEY_CTRL_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 9)
+#define EVP_PKEY_CTRL_GET_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 10)
+#define EVP_PKEY_CTRL_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 11)
+#define EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 12)
+
+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;
+ // operation contains one of the |EVP_PKEY_OP_*| values.
+ int operation;
+ // Algorithm specific data
+ void *data;
+} /* EVP_PKEY_CTX */;
+
+struct evp_pkey_method_st {
+ int pkey_id;
+
+ int (*init)(EVP_PKEY_CTX *ctx);
+ int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src);
+ void (*cleanup)(EVP_PKEY_CTX *ctx);
+
+ int (*keygen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
+
+ int (*sign)(EVP_PKEY_CTX *ctx, uint8_t *sig, size_t *siglen,
+ const uint8_t *tbs, size_t tbslen);
+
+ int (*sign_message)(EVP_PKEY_CTX *ctx, uint8_t *sig, size_t *siglen,
+ const uint8_t *tbs, size_t tbslen);
+
+ int (*verify)(EVP_PKEY_CTX *ctx, const uint8_t *sig, size_t siglen,
+ const uint8_t *tbs, size_t tbslen);
+
+ int (*verify_message)(EVP_PKEY_CTX *ctx, const uint8_t *sig, size_t siglen,
+ const uint8_t *tbs, size_t tbslen);
+
+ int (*verify_recover)(EVP_PKEY_CTX *ctx, uint8_t *out, size_t *out_len,
+ const uint8_t *sig, size_t sig_len);
+
+ int (*encrypt)(EVP_PKEY_CTX *ctx, uint8_t *out, size_t *outlen,
+ const uint8_t *in, size_t inlen);
+
+ int (*decrypt)(EVP_PKEY_CTX *ctx, uint8_t *out, size_t *outlen,
+ const uint8_t *in, size_t inlen);
+
+ int (*derive)(EVP_PKEY_CTX *ctx, uint8_t *key, size_t *keylen);
+
+ int (*ctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
+} /* EVP_PKEY_METHOD */;
+
+typedef struct {
+ union {
+ uint8_t priv[64];
+ struct {
+ // Shift the location of the public key to align with where it is in the
+ // private key representation.
+ uint8_t pad[32];
+ uint8_t value[32];
+ } pub;
+ } key;
+ char has_private;
+} ED25519_KEY;
+
+extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meth;
+extern const EVP_PKEY_ASN1_METHOD ec_asn1_meth;
+extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meth;
+extern const EVP_PKEY_ASN1_METHOD ed25519_asn1_meth;
+
+extern const EVP_PKEY_METHOD rsa_pkey_meth;
+extern const EVP_PKEY_METHOD ec_pkey_meth;
+extern const EVP_PKEY_METHOD ed25519_pkey_meth;
+
+
+#if defined(__cplusplus)
+} // extern C
+#endif
+
+#endif // OPENSSL_HEADER_EVP_INTERNAL_H
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