diff options
Diffstat (limited to 'g10/seskey.c')
| -rw-r--r-- | g10/seskey.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/g10/seskey.c b/g10/seskey.c index fa6765dc6..2d7918d39 100644 --- a/g10/seskey.c +++ b/g10/seskey.c @@ -319,11 +319,13 @@ encode_md_value (PKT_public_key *pk, gcry_md_hd_t md, int hash_algo) return NULL; } - /* Note that in case of ECDSA 521 hash is always smaller than - the key size. */ + /* By passing QBYTES as length to mpi_scan, we do the truncation + of the hash. + + Note that in case of ECDSA 521 the hash is always smaller + than the key size. */ if (gcry_mpi_scan (&frame, GCRYMPI_FMT_USG, - gcry_md_read (md, hash_algo), - gcry_md_get_algo_dlen (hash_algo), &qbytes)) + gcry_md_read (md, hash_algo), qbytes, &qbytes)) BUG(); } else |