text: /* 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>
  
  #include <oqs/oqs.h>
  
  #if defined(__cplusplus)
  extern "C" {
  #endif
  
  
  struct evp_pkey_asn1_method_st {
    int pkey_id;
    uint8_t oid[11]; // OQS note: increased length (was 9) to accomodate larger PQ OIDs
    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);
  
    int (*set_priv_raw)(EVP_PKEY *pkey, const uint8_t *in, size_t len);
    int (*set_pub_raw)(EVP_PKEY *pkey, const uint8_t *in, size_t len);
    int (*get_priv_raw)(const EVP_PKEY *pkey, uint8_t *out, size_t *out_len);
    int (*get_pub_raw)(const EVP_PKEY *pkey, uint8_t *out, size_t *out_len);
  
    // 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);
  
    // OQS note: We've changed the return type from "int" to "size_t"
    // to allow for PQ algorithms with large signatures.
    size_t (*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_PARAMGEN (1 << 9)
  
  #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_OP_PARAMGEN)
  
  // 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)
  #define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID (EVP_PKEY_ALG_CTRL + 13)
  
  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 (*paramgen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
  
    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;
  
  typedef struct {
      OQS_SIG *ctx;
      uint8_t *pub;
      uint8_t *priv;
      char has_private;
  } OQS_KEY;
  
  typedef struct {
    uint8_t pub[32];
    uint8_t priv[32];
    char has_private;
  } X25519_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_ASN1_METHOD x25519_asn1_meth;
  ///// OQS_TEMPLATE_FRAGMENT_DECLARE_ASN1_METHS_START
  extern const EVP_PKEY_ASN1_METHOD oqs_sig_default_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD dilithium2_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD dilithium3_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD dilithium5_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD dilithium2_aes_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD dilithium3_aes_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD dilithium5_aes_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD falcon512_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD falcon1024_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD picnicl1fs_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD picnicl1ur_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD picnicl1full_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD picnic3l1_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD picnic3l3_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD picnic3l5_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD rainbowIclassic_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD rainbowIcircumzenithal_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD rainbowIcompressed_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD rainbowIIIclassic_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD rainbowIIIcircumzenithal_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD rainbowIIIcompressed_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD rainbowVclassic_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD rainbowVcircumzenithal_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD rainbowVcompressed_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsharaka128frobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsharaka128fsimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsharaka128srobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsharaka128ssimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsharaka192frobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsharaka192fsimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsharaka192srobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsharaka192ssimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsharaka256frobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsharaka256fsimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsharaka256srobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsharaka256ssimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincssha256128frobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincssha256128fsimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincssha256128srobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincssha256128ssimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincssha256192frobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincssha256192fsimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincssha256192srobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincssha256192ssimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincssha256256frobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincssha256256fsimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincssha256256srobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincssha256256ssimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsshake256128frobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsshake256128fsimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsshake256128srobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsshake256128ssimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsshake256192frobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsshake256192fsimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsshake256192srobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsshake256192ssimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsshake256256frobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsshake256256fsimple_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsshake256256srobust_asn1_meth;
  extern const EVP_PKEY_ASN1_METHOD sphincsshake256256ssimple_asn1_meth;
  ///// OQS_TEMPLATE_FRAGMENT_DECLARE_ASN1_METHS_END
  
  extern const EVP_PKEY_METHOD rsa_pkey_meth;
  extern const EVP_PKEY_METHOD ec_pkey_meth;
  extern const EVP_PKEY_METHOD ed25519_pkey_meth;
  extern const EVP_PKEY_METHOD x25519_pkey_meth;
  ///// OQS_TEMPLATE_FRAGMENT_DECLARE_PKEY_METHS_START
  extern const EVP_PKEY_METHOD oqs_sig_default_pkey_meth;
  extern const EVP_PKEY_METHOD dilithium2_pkey_meth;
  extern const EVP_PKEY_METHOD dilithium3_pkey_meth;
  extern const EVP_PKEY_METHOD dilithium5_pkey_meth;
  extern const EVP_PKEY_METHOD dilithium2_aes_pkey_meth;
  extern const EVP_PKEY_METHOD dilithium3_aes_pkey_meth;
  extern const EVP_PKEY_METHOD dilithium5_aes_pkey_meth;
  extern const EVP_PKEY_METHOD falcon512_pkey_meth;
  extern const EVP_PKEY_METHOD falcon1024_pkey_meth;
  extern const EVP_PKEY_METHOD picnicl1fs_pkey_meth;
  extern const EVP_PKEY_METHOD picnicl1ur_pkey_meth;
  extern const EVP_PKEY_METHOD picnicl1full_pkey_meth;
  extern const EVP_PKEY_METHOD picnic3l1_pkey_meth;
  extern const EVP_PKEY_METHOD picnic3l3_pkey_meth;
  extern const EVP_PKEY_METHOD picnic3l5_pkey_meth;
  extern const EVP_PKEY_METHOD rainbowIclassic_pkey_meth;
  extern const EVP_PKEY_METHOD rainbowIcircumzenithal_pkey_meth;
  extern const EVP_PKEY_METHOD rainbowIcompressed_pkey_meth;
  extern const EVP_PKEY_METHOD rainbowIIIclassic_pkey_meth;
  extern const EVP_PKEY_METHOD rainbowIIIcircumzenithal_pkey_meth;
  extern const EVP_PKEY_METHOD rainbowIIIcompressed_pkey_meth;
  extern const EVP_PKEY_METHOD rainbowVclassic_pkey_meth;
  extern const EVP_PKEY_METHOD rainbowVcircumzenithal_pkey_meth;
  extern const EVP_PKEY_METHOD rainbowVcompressed_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsharaka128frobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsharaka128fsimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsharaka128srobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsharaka128ssimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsharaka192frobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsharaka192fsimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsharaka192srobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsharaka192ssimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsharaka256frobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsharaka256fsimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsharaka256srobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsharaka256ssimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincssha256128frobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincssha256128fsimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincssha256128srobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincssha256128ssimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincssha256192frobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincssha256192fsimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincssha256192srobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincssha256192ssimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincssha256256frobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincssha256256fsimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincssha256256srobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincssha256256ssimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsshake256128frobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsshake256128fsimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsshake256128srobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsshake256128ssimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsshake256192frobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsshake256192fsimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsshake256192srobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsshake256192ssimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsshake256256frobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsshake256256fsimple_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsshake256256srobust_pkey_meth;
  extern const EVP_PKEY_METHOD sphincsshake256256ssimple_pkey_meth;
  ///// OQS_TEMPLATE_FRAGMENT_DECLARE_PKEY_METHS_END
  
  #if defined(__cplusplus)
  }  // extern C
  #endif
  
  #endif  // OPENSSL_HEADER_EVP_INTERNAL_H
  