[git] GCRYPT - branch, master, updated. libgcrypt-1.7.1-2-g0f3a069

[by Niibe Yutaka]

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      from  fa917d2e24b0c98143a079ab4889ad8f69bee446 (commit)

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- Log -----------------------------------------------------------------
commit 0f3a069211d8d24a61aa0dc2cc6c4ef04cc4fab7
Author: Niibe Yutaka <gniibe at fsij.org>
Date:   Thu Jun 16 10:56:28 2016 +0900

    ecc: Default cofactor 1 for PUBKEY_FLAG_PARAM.
    
    * cipher/ecc.c (ecc_check_secret_key, ecc_sign, ecc_verify)
    (ecc_encrypt_raw, ecc_decrypt_raw, compute_keygrip): Set default
    cofactor as 1, when not specified.
    
    --
    
    GnuPG-bug-id: 2347
    Signed-off-by: NIIBE Yutaka <gniibe at fsij.org>

diff --git a/cipher/ecc.c b/cipher/ecc.c
index b09902e..8af0d14 100644
--- a/cipher/ecc.c
+++ b/cipher/ecc.c
@@ -806,6 +806,8 @@ ecc_check_secret_key (gcry_sexp_t keyparms)
       sk.E.dialect = ((flags & PUBKEY_FLAG_EDDSA)
                       ? ECC_DIALECT_ED25519
                       : ECC_DIALECT_STANDARD);
+      if (!sk.E.h)
+	sk.E.h = mpi_const (MPI_C_ONE);
     }
   if (DBG_CIPHER)
     {
@@ -941,6 +943,8 @@ ecc_sign (gcry_sexp_t *r_sig, gcry_sexp_t s_data, gcry_sexp_t keyparms)
       sk.E.dialect = ((ctx.flags & PUBKEY_FLAG_EDDSA)
                       ? ECC_DIALECT_ED25519
                       : ECC_DIALECT_STANDARD);
+      if (!sk.E.h)
+	sk.E.h = mpi_const (MPI_C_ONE);
     }
   if (DBG_CIPHER)
     {
@@ -1107,6 +1111,8 @@ ecc_verify (gcry_sexp_t s_sig, gcry_sexp_t s_data, gcry_sexp_t s_keyparms)
       pk.E.dialect = ((sigflags & PUBKEY_FLAG_EDDSA)
                       ? ECC_DIALECT_ED25519
                       : ECC_DIALECT_STANDARD);
+      if (!pk.E.h)
+	pk.E.h = mpi_const (MPI_C_ONE);
     }
 
   if (DBG_CIPHER)
@@ -1322,6 +1328,8 @@ ecc_encrypt_raw (gcry_sexp_t *r_ciph, gcry_sexp_t s_data, gcry_sexp_t keyparms)
     {
       pk.E.model = MPI_EC_WEIERSTRASS;
       pk.E.dialect = ECC_DIALECT_STANDARD;
+      if (!pk.E.h)
+	pk.E.h = mpi_const (MPI_C_ONE);
     }
 
   /*
@@ -1577,6 +1585,8 @@ ecc_decrypt_raw (gcry_sexp_t *r_plain, gcry_sexp_t s_data, gcry_sexp_t keyparms)
     {
       sk.E.model = MPI_EC_WEIERSTRASS;
       sk.E.dialect = ECC_DIALECT_STANDARD;
+      if (!sk.E.h)
+	sk.E.h = mpi_const (MPI_C_ONE);
     }
   if (DBG_CIPHER)
     {
@@ -1859,6 +1869,8 @@ compute_keygrip (gcry_md_hd_t md, gcry_sexp_t keyparms)
       dialect = ((flags & PUBKEY_FLAG_EDDSA)
                  ? ECC_DIALECT_ED25519
                  : ECC_DIALECT_STANDARD);
+      if (!values[5])
+	values[5] = mpi_const (MPI_C_ONE);
     }
 
   /* Check that all parameters are known and normalize all MPIs (that

-----------------------------------------------------------------------

Summary of changes:
 cipher/ecc.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)


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