Move the pk-digest functions into crypto_rsa.[ch].

We moved the crypto_pk_* digest functions into crypto_rsa.[ch] because they fit
better with the RSA module.

Follows #24658.

Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>

1 files changed, 0 insertions, 118 deletions

diff --git a/src/common/crypto_digest.c b/src/common/crypto_digest.c
index 149b3a984d..36027cbe1d 100644
--- a/src/common/crypto_digest.c
+++ b/src/common/crypto_digest.c
@@ -23,124 +23,6 @@ ENABLE_GCC_WARNING(redundant-decls)
 
 #include "container.h"
 
-/* public key crypto digest functions */
-
-/** Check a siglen-byte long signature at <b>sig</b> against
- * <b>datalen</b> bytes of data at <b>data</b>, using the public key
- * in <b>env</b>. Return 0 if <b>sig</b> is a correct signature for
- * SHA1(data).  Else return -1.
- */
-MOCK_IMPL(int,
-crypto_pk_public_checksig_digest,(crypto_pk_t *env, const char *data,
-                                  size_t datalen, const char *sig,
-                                  size_t siglen))
-{
-  char digest[DIGEST_LEN];
-  char *buf;
-  size_t buflen;
-  int r;
-
-  tor_assert(env);
-  tor_assert(data);
-  tor_assert(sig);
-  tor_assert(datalen < SIZE_T_CEILING);
-  tor_assert(siglen < SIZE_T_CEILING);
-
-  if (crypto_digest(digest,data,datalen)<0) {
-    log_warn(LD_BUG, "couldn't compute digest");
-    return -1;
-  }
-  buflen = crypto_pk_keysize(env);
-  buf = tor_malloc(buflen);
-  r = crypto_pk_public_checksig(env,buf,buflen,sig,siglen);
-  if (r != DIGEST_LEN) {
-    log_warn(LD_CRYPTO, "Invalid signature");
-    tor_free(buf);
-    return -1;
-  }
-  if (tor_memneq(buf, digest, DIGEST_LEN)) {
-    log_warn(LD_CRYPTO, "Signature mismatched with digest.");
-    tor_free(buf);
-    return -1;
-  }
-  tor_free(buf);
-
-  return 0;
-}
-
-/** Compute a SHA1 digest of <b>fromlen</b> bytes of data stored at
- * <b>from</b>; sign the data with the private key in <b>env</b>, and
- * store it in <b>to</b>.  Return the number of bytes written on
- * success, and -1 on failure.
- *
- * <b>tolen</b> is the number of writable bytes in <b>to</b>, and must be
- * at least the length of the modulus of <b>env</b>.
- */
-int
-crypto_pk_private_sign_digest(crypto_pk_t *env, char *to, size_t tolen,
-                              const char *from, size_t fromlen)
-{
-  int r;
-  char digest[DIGEST_LEN];
-  if (crypto_digest(digest,from,fromlen)<0)
-    return -1;
-  r = crypto_pk_private_sign(env,to,tolen,digest,DIGEST_LEN);
-  memwipe(digest, 0, sizeof(digest));
-  return r;
-}
-
-/** Given a private or public key <b>pk</b>, put a SHA1 hash of the
- * public key into <b>digest_out</b> (must have DIGEST_LEN bytes of space).
- * Return 0 on success, -1 on failure.
- */
-int
-crypto_pk_get_digest(const crypto_pk_t *pk, char *digest_out)
-{
-  char *buf;
-  size_t buflen;
-  int len;
-  int rv = -1;
-
-  buflen = crypto_pk_keysize(pk)*2;
-  buf = tor_malloc(buflen);
-  len = crypto_pk_asn1_encode(pk, buf, buflen);
-  if (len < 0)
-    goto done;
-
-  if (crypto_digest(digest_out, buf, len) < 0)
-    goto done;
-
-  rv = 0;
-  done:
-  tor_free(buf);
-  return rv;
-}
-
-/** Compute all digests of the DER encoding of <b>pk</b>, and store them
- * in <b>digests_out</b>.  Return 0 on success, -1 on failure. */
-int
-crypto_pk_get_common_digests(crypto_pk_t *pk, common_digests_t *digests_out)
-{
-  char *buf;
-  size_t buflen;
-  int len;
-  int rv = -1;
-
-  buflen = crypto_pk_keysize(pk)*2;
-  buf = tor_malloc(buflen);
-  len = crypto_pk_asn1_encode(pk, buf, buflen);
-  if (len < 0)
-    goto done;
-
-  if (crypto_common_digests(digests_out, (char*)buf, len) < 0)
-    goto done;
-
-  rv = 0;
- done:
-  tor_free(buf);
-  return rv;
-}
-
 /* Crypto digest functions */
 
 /** Compute the SHA1 digest of the <b>len</b> bytes on data stored in