+/* RFC8879 Certificate compression APIs */
+
+int SSL_CTX_compress_certs(SSL_CTX *ctx, int alg);
+int SSL_compress_certs(SSL *ssl, int alg);
+
+int SSL_CTX_set1_cert_comp_preference(SSL_CTX *ctx, int *algs, size_t len);
+int SSL_set1_cert_comp_preference(SSL *ssl, int *algs, size_t len);
+
+int SSL_CTX_set1_compressed_cert(SSL_CTX *ctx, int algorithm, unsigned char *comp_data,
+ size_t comp_length, size_t orig_length);
+int SSL_set1_compressed_cert(SSL *ssl, int algorithm, unsigned char *comp_data,
+ size_t comp_length, size_t orig_length);
+size_t SSL_CTX_get1_compressed_cert(SSL_CTX *ctx, int alg, unsigned char **data, size_t *orig_len);
+size_t SSL_get1_compressed_cert(SSL *ssl, int alg, unsigned char **data, size_t *orig_len);
+
+