diff --git a/crypto/fipsmodule/rsa/rsa.c b/crypto/fipsmodule/rsa/rsa.c
index ae63e1a..f6d3640 100644
--- a/crypto/fipsmodule/rsa/rsa.c
+++ b/crypto/fipsmodule/rsa/rsa.c
@@ -458,18 +458,18 @@
 };
 
 int RSA_add_pkcs1_prefix(uint8_t **out_msg, size_t *out_msg_len,
-                         int *is_alloced, int hash_nid, const uint8_t *msg,
-                         size_t msg_len) {
+                         int *is_alloced, int hash_nid, const uint8_t *digest,
+                         size_t digest_len) {
   unsigned i;
 
   if (hash_nid == NID_md5_sha1) {
     // Special case: SSL signature, just check the length.
-    if (msg_len != SSL_SIG_LENGTH) {
+    if (digest_len != SSL_SIG_LENGTH) {
       OPENSSL_PUT_ERROR(RSA, RSA_R_INVALID_MESSAGE_LENGTH);
       return 0;
     }
 
-    *out_msg = (uint8_t*) msg;
+    *out_msg = (uint8_t *)digest;
     *out_msg_len = SSL_SIG_LENGTH;
     *is_alloced = 0;
     return 1;
@@ -481,7 +481,7 @@
       continue;
     }
 
-    if (msg_len != sig_prefix->hash_len) {
+    if (digest_len != sig_prefix->hash_len) {
       OPENSSL_PUT_ERROR(RSA, RSA_R_INVALID_MESSAGE_LENGTH);
       return 0;
     }
@@ -491,7 +491,7 @@
     unsigned signed_msg_len;
     uint8_t *signed_msg;
 
-    signed_msg_len = prefix_len + msg_len;
+    signed_msg_len = prefix_len + digest_len;
     if (signed_msg_len < prefix_len) {
       OPENSSL_PUT_ERROR(RSA, RSA_R_TOO_LONG);
       return 0;
@@ -504,7 +504,7 @@
     }
 
     OPENSSL_memcpy(signed_msg, prefix, prefix_len);
-    OPENSSL_memcpy(signed_msg + prefix_len, msg, msg_len);
+    OPENSSL_memcpy(signed_msg + prefix_len, digest, digest_len);
 
     *out_msg = signed_msg;
     *out_msg_len = signed_msg_len;
@@ -517,8 +517,8 @@
   return 0;
 }
 
-int RSA_sign(int hash_nid, const uint8_t *in, unsigned in_len, uint8_t *out,
-             unsigned *out_len, RSA *rsa) {
+int RSA_sign(int hash_nid, const uint8_t *digest, unsigned digest_len,
+             uint8_t *out, unsigned *out_len, RSA *rsa) {
   const unsigned rsa_size = RSA_size(rsa);
   int ret = 0;
   uint8_t *signed_msg = NULL;
@@ -527,11 +527,12 @@
   size_t size_t_out_len;
 
   if (rsa->meth->sign) {
-    return rsa->meth->sign(hash_nid, in, in_len, out, out_len, rsa);
+    return rsa->meth->sign(hash_nid, digest, digest_len, out, out_len, rsa);
   }
 
   if (!RSA_add_pkcs1_prefix(&signed_msg, &signed_msg_len,
-                            &signed_msg_is_alloced, hash_nid, in, in_len) ||
+                            &signed_msg_is_alloced, hash_nid, digest,
+                            digest_len) ||
       !RSA_sign_raw(rsa, &size_t_out_len, out, rsa_size, signed_msg,
                     signed_msg_len, RSA_PKCS1_PADDING)) {
     goto err;
@@ -548,9 +549,9 @@
 }
 
 int RSA_sign_pss_mgf1(RSA *rsa, size_t *out_len, uint8_t *out, size_t max_out,
-                      const uint8_t *in, size_t in_len, const EVP_MD *md,
-                      const EVP_MD *mgf1_md, int salt_len) {
-  if (in_len != EVP_MD_size(md)) {
+                      const uint8_t *digest, size_t digest_len,
+                      const EVP_MD *md, const EVP_MD *mgf1_md, int salt_len) {
+  if (digest_len != EVP_MD_size(md)) {
     OPENSSL_PUT_ERROR(RSA, RSA_R_INVALID_MESSAGE_LENGTH);
     return 0;
   }
@@ -562,15 +563,15 @@
     return 0;
   }
 
-  int ret =
-      RSA_padding_add_PKCS1_PSS_mgf1(rsa, padded, in, md, mgf1_md, salt_len) &&
-      RSA_sign_raw(rsa, out_len, out, max_out, padded, padded_len,
-                   RSA_NO_PADDING);
+  int ret = RSA_padding_add_PKCS1_PSS_mgf1(rsa, padded, digest, md, mgf1_md,
+                                           salt_len) &&
+            RSA_sign_raw(rsa, out_len, out, max_out, padded, padded_len,
+                         RSA_NO_PADDING);
   OPENSSL_free(padded);
   return ret;
 }
 
-int RSA_verify(int hash_nid, const uint8_t *msg, size_t msg_len,
+int RSA_verify(int hash_nid, const uint8_t *digest, size_t digest_len,
                const uint8_t *sig, size_t sig_len, RSA *rsa) {
   if (rsa->n == NULL || rsa->e == NULL) {
     OPENSSL_PUT_ERROR(RSA, RSA_R_VALUE_MISSING);
@@ -584,7 +585,7 @@
   size_t signed_msg_len = 0, len;
   int signed_msg_is_alloced = 0;
 
-  if (hash_nid == NID_md5_sha1 && msg_len != SSL_SIG_LENGTH) {
+  if (hash_nid == NID_md5_sha1 && digest_len != SSL_SIG_LENGTH) {
     OPENSSL_PUT_ERROR(RSA, RSA_R_INVALID_MESSAGE_LENGTH);
     return 0;
   }
@@ -601,7 +602,8 @@
   }
 
   if (!RSA_add_pkcs1_prefix(&signed_msg, &signed_msg_len,
-                            &signed_msg_is_alloced, hash_nid, msg, msg_len)) {
+                            &signed_msg_is_alloced, hash_nid, digest,
+                            digest_len)) {
     goto out;
   }
 
@@ -622,10 +624,10 @@
   return ret;
 }
 
-int RSA_verify_pss_mgf1(RSA *rsa, const uint8_t *msg, size_t msg_len,
+int RSA_verify_pss_mgf1(RSA *rsa, const uint8_t *digest, size_t digest_len,
                         const EVP_MD *md, const EVP_MD *mgf1_md, int salt_len,
                         const uint8_t *sig, size_t sig_len) {
-  if (msg_len != EVP_MD_size(md)) {
+  if (digest_len != EVP_MD_size(md)) {
     OPENSSL_PUT_ERROR(RSA, RSA_R_INVALID_MESSAGE_LENGTH);
     return 0;
   }
@@ -647,7 +649,7 @@
     goto err;
   }
 
-  ret = RSA_verify_PKCS1_PSS_mgf1(rsa, msg, md, mgf1_md, em, salt_len);
+  ret = RSA_verify_PKCS1_PSS_mgf1(rsa, digest, md, mgf1_md, em, salt_len);
 
 err:
   OPENSSL_free(em);
diff --git a/include/openssl/ecdsa.h b/include/openssl/ecdsa.h
index 08950e3..5443ef5 100644
--- a/include/openssl/ecdsa.h
+++ b/include/openssl/ecdsa.h
@@ -73,6 +73,9 @@
 // space. On successful exit, |*sig_len| is set to the actual number of bytes
 // written. The |type| argument should be zero. It returns one on success and
 // zero otherwise.
+//
+// WARNING: |digest| must be the output of some hash function on the data to be
+// signed. Passing unhashed inputs will not result in a secure signature scheme.
 OPENSSL_EXPORT int ECDSA_sign(int type, const uint8_t *digest,
                               size_t digest_len, uint8_t *sig,
                               unsigned int *sig_len, const EC_KEY *key);
@@ -81,6 +84,10 @@
 // signature by |key| of |digest|. (The |type| argument should be zero.) It
 // returns one on success or zero if the signature is invalid or an error
 // occurred.
+//
+// WARNING: |digest| must be the output of some hash function on the data to be
+// verified. Passing unhashed inputs will not result in a secure signature
+// scheme.
 OPENSSL_EXPORT int ECDSA_verify(int type, const uint8_t *digest,
                                 size_t digest_len, const uint8_t *sig,
                                 size_t sig_len, const EC_KEY *key);
@@ -124,12 +131,19 @@
 
 // ECDSA_do_sign signs |digest_len| bytes from |digest| with |key| and returns
 // the resulting signature structure, or NULL on error.
+//
+// WARNING: |digest| must be the output of some hash function on the data to be
+// signed. Passing unhashed inputs will not result in a secure signature scheme.
 OPENSSL_EXPORT ECDSA_SIG *ECDSA_do_sign(const uint8_t *digest,
                                         size_t digest_len, const EC_KEY *key);
 
 // ECDSA_do_verify verifies that |sig| constitutes a valid signature by |key|
 // of |digest|. It returns one on success or zero if the signature is invalid
 // or on error.
+//
+// WARNING: |digest| must be the output of some hash function on the data to be
+// verified. Passing unhashed inputs will not result in a secure signature
+// scheme.
 OPENSSL_EXPORT int ECDSA_do_verify(const uint8_t *digest, size_t digest_len,
                                    const ECDSA_SIG *sig, const EC_KEY *key);
 
diff --git a/include/openssl/evp.h b/include/openssl/evp.h
index bdbcc2d..378eb32 100644
--- a/include/openssl/evp.h
+++ b/include/openssl/evp.h
@@ -545,14 +545,15 @@
 OPENSSL_EXPORT int EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx);
 
 // EVP_PKEY_sign signs |digest_len| bytes from |digest| using |ctx|. If |sig| is
-// NULL, the maximum size of the signature is written to
-// |out_sig_len|. Otherwise, |*sig_len| must contain the number of bytes of
-// space available at |sig|. If sufficient, the signature will be written to
-// |sig| and |*sig_len| updated with the true length.
+// NULL, the maximum size of the signature is written to |out_sig_len|.
+// Otherwise, |*sig_len| must contain the number of bytes of space available at
+// |sig|. If sufficient, the signature will be written to |sig| and |*sig_len|
+// updated with the true length. This function will fail for signature
+// algorithms like Ed25519 that do not support signing pre-hashed inputs.
 //
-// This function expects a pre-hashed input and will fail for signature
-// algorithms which do not support this. Use |EVP_DigestSignInit| to sign an
-// unhashed input.
+// WARNING: |digest| must be the output of some hash function on the data to be
+// signed. Passing unhashed inputs will not result in a secure signature scheme.
+// Use |EVP_DigestSignInit| to sign an unhashed input.
 //
 // WARNING: Setting |sig| to NULL only gives the maximum size of the
 // signature. The actual signature may be smaller.
@@ -570,11 +571,13 @@
 OPENSSL_EXPORT int EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx);
 
 // EVP_PKEY_verify verifies that |sig_len| bytes from |sig| are a valid
-// signature for |digest|.
+// signature for |digest|. This function will fail for signature
+// algorithms like Ed25519 that do not support signing pre-hashed inputs.
 //
-// This function expects a pre-hashed input and will fail for signature
-// algorithms which do not support this. Use |EVP_DigestVerifyInit| to verify a
-// signature given the unhashed input.
+// WARNING: |digest| must be the output of some hash function on the data to be
+// verified. Passing unhashed inputs will not result in a secure signature
+// scheme. Use |EVP_DigestVerifyInit| to verify a signature given the unhashed
+// input.
 //
 // It returns one on success or zero on error.
 OPENSSL_EXPORT int EVP_PKEY_verify(EVP_PKEY_CTX *ctx, const uint8_t *sig,
diff --git a/include/openssl/rsa.h b/include/openssl/rsa.h
index ed6df69..da7b2ff 100644
--- a/include/openssl/rsa.h
+++ b/include/openssl/rsa.h
@@ -283,120 +283,155 @@
 // These functions are considered non-mutating for thread-safety purposes and
 // may be used concurrently.
 
-// RSA_sign signs |in_len| bytes of digest from |in| with |rsa| using
+// RSA_sign signs |digest_len| bytes of digest from |digest| with |rsa| using
 // RSASSA-PKCS1-v1_5. It writes, at most, |RSA_size(rsa)| bytes to |out|. On
 // successful return, the actual number of bytes written is written to
 // |*out_len|.
 //
-// The |hash_nid| argument identifies the hash function used to calculate |in|
-// and is embedded in the resulting signature. For example, it might be
+// The |hash_nid| argument identifies the hash function used to calculate
+// |digest| and is embedded in the resulting signature. For example, it might be
 // |NID_sha256|.
 //
 // It returns 1 on success and zero on error.
-OPENSSL_EXPORT int RSA_sign(int hash_nid, const uint8_t *in,
-                            unsigned int in_len, uint8_t *out,
-                            unsigned int *out_len, RSA *rsa);
-
-// RSA_sign_pss_mgf1 signs |in_len| bytes from |in| with the public key from
-// |rsa| using RSASSA-PSS with MGF1 as the mask generation function. It writes,
-// at most, |max_out| bytes of signature data to |out|. The |max_out| argument
-// must be, at least, |RSA_size| in order to ensure success. It returns 1 on
-// success or zero on error.
 //
-// The |md| and |mgf1_md| arguments identify the hash used to calculate |msg|
+// WARNING: |digest| must be the result of hashing the data to be signed with
+// |hash_nid|. Passing unhashed inputs will not result in a secure signature
+// scheme.
+OPENSSL_EXPORT int RSA_sign(int hash_nid, const uint8_t *digest,
+                            unsigned digest_len, uint8_t *out,
+                            unsigned *out_len, RSA *rsa);
+
+// RSA_sign_pss_mgf1 signs |digest_len| bytes from |digest| with the public key
+// from |rsa| using RSASSA-PSS with MGF1 as the mask generation function. It
+// writes, at most, |max_out| bytes of signature data to |out|. The |max_out|
+// argument must be, at least, |RSA_size| in order to ensure success. It returns
+// 1 on success or zero on error.
+//
+// The |md| and |mgf1_md| arguments identify the hash used to calculate |digest|
 // and the MGF1 hash, respectively. If |mgf1_md| is NULL, |md| is
 // used.
 //
 // |salt_len| specifies the expected salt length in bytes. If |salt_len| is -1,
 // then the salt length is the same as the hash length. If -2, then the salt
 // length is maximal given the size of |rsa|. If unsure, use -1.
+//
+// WARNING: |digest| must be the result of hashing the data to be signed with
+// |md|. Passing unhashed inputs will not result in a secure signature scheme.
 OPENSSL_EXPORT int RSA_sign_pss_mgf1(RSA *rsa, size_t *out_len, uint8_t *out,
-                                     size_t max_out, const uint8_t *in,
-                                     size_t in_len, const EVP_MD *md,
+                                     size_t max_out, const uint8_t *digest,
+                                     size_t digest_len, const EVP_MD *md,
                                      const EVP_MD *mgf1_md, int salt_len);
 
-// RSA_sign_raw signs |in_len| bytes from |in| with the public key from |rsa|
-// and writes, at most, |max_out| bytes of signature data to |out|. The
-// |max_out| argument must be, at least, |RSA_size| in order to ensure success.
+// RSA_sign_raw performs the private key portion of computing a signature with
+// |rsa|. It writes, at most, |max_out| bytes of signature data to |out|. The
+// |max_out| argument must be, at least, |RSA_size| in order to ensure the
+// output fits. It returns 1 on success or zero on error.
 //
-// It returns 1 on success or zero on error.
+// If |padding| is |RSA_PKCS1_PADDING|, this function wraps |in| with the
+// padding portion of RSASSA-PKCS1-v1_5 and then performs the raw private key
+// operation. The caller is responsible for hashing the input and wrapping it in
+// a DigestInfo structure.
 //
-// The |padding| argument must be one of the |RSA_*_PADDING| values. If in
-// doubt, |RSA_PKCS1_PADDING| is the most common but |RSA_PKCS1_PSS_PADDING|
-// (via |RSA_sign_pss_mgf1| or the |EVP_PKEY| interface) is preferred for new
-// protocols.
+// If |padding| is |RSA_NO_PADDING|, this function only performs the raw private
+// key operation, interpreting |in| as a integer modulo n. The caller is
+// responsible for hashing the input and encoding it for the signature scheme
+// being implemented.
+//
+// WARNING: This function is a building block for a signature scheme, not a
+// complete one. |in| must be the result of hashing and encoding the data as
+// needed for the scheme being implemented. Passing in arbitrary inputs will not
+// result in a secure signature scheme.
 OPENSSL_EXPORT int RSA_sign_raw(RSA *rsa, size_t *out_len, uint8_t *out,
                                 size_t max_out, const uint8_t *in,
                                 size_t in_len, int padding);
 
 // RSA_verify verifies that |sig_len| bytes from |sig| are a valid,
-// RSASSA-PKCS1-v1_5 signature of |msg_len| bytes at |msg| by |rsa|.
+// RSASSA-PKCS1-v1_5 signature of |digest_len| bytes at |digest| by |rsa|.
 //
-// The |hash_nid| argument identifies the hash function used to calculate |msg|
-// and is embedded in the resulting signature in order to prevent hash
+// The |hash_nid| argument identifies the hash function used to calculate
+// |digest| and is embedded in the resulting signature in order to prevent hash
 // confusion attacks. For example, it might be |NID_sha256|.
 //
 // It returns one if the signature is valid and zero otherwise.
 //
 // WARNING: this differs from the original, OpenSSL function which additionally
 // returned -1 on error.
-OPENSSL_EXPORT int RSA_verify(int hash_nid, const uint8_t *msg, size_t msg_len,
-                              const uint8_t *sig, size_t sig_len, RSA *rsa);
+//
+// WARNING: |digest| must be the result of hashing the data to be verified with
+// |hash_nid|. Passing unhashed input will not result in a secure signature
+// scheme.
+OPENSSL_EXPORT int RSA_verify(int hash_nid, const uint8_t *digest,
+                              size_t digest_len, const uint8_t *sig,
+                              size_t sig_len, RSA *rsa);
 
 // RSA_verify_pss_mgf1 verifies that |sig_len| bytes from |sig| are a valid,
-// RSASSA-PSS signature of |msg_len| bytes at |msg| by |rsa|. It returns one if
-// the signature is valid and zero otherwise. MGF1 is used as the mask
+// RSASSA-PSS signature of |digest_len| bytes at |digest| by |rsa|. It returns
+// one if the signature is valid and zero otherwise. MGF1 is used as the mask
 // generation function.
 //
-// The |md| and |mgf1_md| arguments identify the hash used to calculate |msg|
+// The |md| and |mgf1_md| arguments identify the hash used to calculate |digest|
 // and the MGF1 hash, respectively. If |mgf1_md| is NULL, |md| is
 // used. |salt_len| specifies the expected salt length in bytes.
 //
 // If |salt_len| is -1, then the salt length is the same as the hash length. If
 // -2, then the salt length is recovered and all values accepted. If unsure, use
 // -1.
-OPENSSL_EXPORT int RSA_verify_pss_mgf1(RSA *rsa, const uint8_t *msg,
-                                       size_t msg_len, const EVP_MD *md,
+//
+// WARNING: |digest| must be the result of hashing the data to be verified with
+// |md|. Passing unhashed input will not result in a secure signature scheme.
+OPENSSL_EXPORT int RSA_verify_pss_mgf1(RSA *rsa, const uint8_t *digest,
+                                       size_t digest_len, const EVP_MD *md,
                                        const EVP_MD *mgf1_md, int salt_len,
                                        const uint8_t *sig, size_t sig_len);
 
-// RSA_verify_raw verifies |in_len| bytes of signature from |in| using the
-// public key from |rsa| and writes, at most, |max_out| bytes of plaintext to
-// |out|. The |max_out| argument must be, at least, |RSA_size| in order to
-// ensure success.
+// RSA_verify_raw performs the public key portion of verifying |in_len| bytes of
+// signature from |in| using the public key from |rsa|. On success, it returns
+// one and writes, at most, |max_out| bytes of output to |out|. The |max_out|
+// argument must be, at least, |RSA_size| in order to ensure the output fits. On
+// failure or invalid input, it returns zero.
 //
-// It returns 1 on success or zero on error.
+// If |padding| is |RSA_PKCS1_PADDING|, this function checks the padding portion
+// of RSASSA-PKCS1-v1_5 and outputs the remainder of the encoded digest. The
+// caller is responsible for checking the output is a DigestInfo-wrapped digest
+// of the message.
 //
-// The |padding| argument must be one of the |RSA_*_PADDING| values. If in
-// doubt, |RSA_PKCS1_PADDING| is the most common but |RSA_PKCS1_PSS_PADDING|
-// (via |RSA_verify_pss_mgf1| or the |EVP_PKEY| interface) is preferred for new
-// protocols.
+// If |padding| is |RSA_NO_PADDING|, this function only performs the raw public
+// key operation. The caller is responsible for checking the output is a valid
+// result for the signature scheme being implemented.
+//
+// WARNING: This function is a building block for a signature scheme, not a
+// complete one. Checking for arbitary strings in |out| will not result in a
+// secure signature scheme.
 OPENSSL_EXPORT int RSA_verify_raw(RSA *rsa, size_t *out_len, uint8_t *out,
                                   size_t max_out, const uint8_t *in,
                                   size_t in_len, int padding);
 
-// RSA_private_encrypt encrypts |flen| bytes from |from| with the private key in
-// |rsa| and writes the encrypted data to |to|. The |to| buffer must have at
-// least |RSA_size| bytes of space. It returns the number of bytes written, or
-// -1 on error. The |padding| argument must be one of the |RSA_*_PADDING|
-// values. If in doubt, |RSA_PKCS1_PADDING| is the most common but
-// |RSA_PKCS1_PSS_PADDING| (via the |EVP_PKEY| interface) is preferred for new
-// protocols.
+// RSA_private_encrypt performs the private key portion of computing a signature
+// with |rsa|. It takes |flen| bytes from |from| as input and writes the result
+// to |to|. The |to| buffer must have at least |RSA_size| bytes of space. It
+// returns the number of bytes written, or -1 on error.
 //
-// WARNING: this function is dangerous because it breaks the usual return value
+// For the interpretation of |padding| and the input, see |RSA_sign_raw|.
+//
+// WARNING: This function is a building block for a signature scheme, not a
+// complete one. See |RSA_sign_raw| for details.
+//
+// WARNING: This function is dangerous because it breaks the usual return value
 // convention. Use |RSA_sign_raw| instead.
 OPENSSL_EXPORT int RSA_private_encrypt(size_t flen, const uint8_t *from,
                                        uint8_t *to, RSA *rsa, int padding);
 
-// RSA_public_decrypt verifies |flen| bytes of signature from |from| using the
-// public key in |rsa| and writes the plaintext to |to|. The |to| buffer must
-// have at least |RSA_size| bytes of space. It returns the number of bytes
-// written, or -1 on error. The |padding| argument must be one of the
-// |RSA_*_PADDING| values. If in doubt, |RSA_PKCS1_PADDING| is the most common
-// but |RSA_PKCS1_PSS_PADDING| (via the |EVP_PKEY| interface) is preferred for
-// new protocols.
+// RSA_public_decrypt performs the public key portion of verifying |flen| bytes
+// of signature from |from| using the public key from |rsa|. It writes the
+// result to |to|, which must have at least |RSA_size| bytes of space. It
+// returns the number of bytes written, or -1 on error.
 //
-// WARNING: this function is dangerous because it breaks the usual return value
+// For the interpretation of |padding| and the result, see |RSA_verify_raw|.
+//
+// WARNING: This function is a building block for a signature scheme, not a
+// complete one. See |RSA_verify_raw| for details.
+//
+// WARNING: This function is dangerous because it breaks the usual return value
 // convention. Use |RSA_verify_raw| instead.
 OPENSSL_EXPORT int RSA_public_decrypt(size_t flen, const uint8_t *from,
                                       uint8_t *to, RSA *rsa, int padding);
@@ -479,13 +514,14 @@
     const uint8_t *param, size_t param_len, const EVP_MD *md,
     const EVP_MD *mgf1md);
 
-// RSA_add_pkcs1_prefix builds a version of |msg| prefixed with the DigestInfo
-// header for the given hash function and sets |out_msg| to point to it. On
-// successful return, if |*is_alloced| is one, the caller must release
+// RSA_add_pkcs1_prefix builds a version of |digest| prefixed with the
+// DigestInfo header for the given hash function and sets |out_msg| to point to
+// it. On successful return, if |*is_alloced| is one, the caller must release
 // |*out_msg| with |OPENSSL_free|.
 OPENSSL_EXPORT int RSA_add_pkcs1_prefix(uint8_t **out_msg, size_t *out_msg_len,
                                         int *is_alloced, int hash_nid,
-                                        const uint8_t *msg, size_t msg_len);
+                                        const uint8_t *digest,
+                                        size_t digest_len);
 
 
 // ASN.1 functions.