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View File openssl-fips-rsagen-d-bits.patch of Package openssl-1_1_0 (Project home:jayvdb:zypper)

Index: openssl-1.1.0c/crypto/rsa/rsa_gen.c
===================================================================
--- openssl-1.1.0c.orig/crypto/rsa/rsa_gen.c	2016-12-08 17:55:15.968669184 +0100
+++ openssl-1.1.0c/crypto/rsa/rsa_gen.c	2016-12-08 17:55:15.976669308 +0100
@@ -173,6 +173,12 @@ static int fips_rsa_builtin_keygen(RSA *
         goto err;
     }
 
+    BN_copy(rsa->e, e_value);
+
+    if (!BN_is_zero(rsa->p) && !BN_is_zero(rsa->q))
+        test = 1;
+
+retry:
     /* prepare approximate minimum p and q */
     if (!BN_set_word(r0, 0xB504F334))
         goto err;
@@ -185,12 +191,6 @@ static int fips_rsa_builtin_keygen(RSA *
     if (!BN_lshift(r3, r3, pbits - 100))
         goto err;
 
-    BN_copy(rsa->e, e_value);
-
-    if (!BN_is_zero(rsa->p) && !BN_is_zero(rsa->q))
-        test = 1;
-
- retry:
     /* generate p and q */
     for (i = 0; i < 5 * pbits; i++) {
  ploop:
@@ -323,6 +323,8 @@ static int fips_rsa_builtin_keygen(RSA *
         BN_free(pr0);
     }
 
+    /* test 2^(bits/2) < d < LCM((p-1)*(q-1)) */
+    /* the LCM part is covered due to the generation by modulo above */
     if (BN_num_bits(rsa->d) < pbits)
         goto retry;             /* d is too small */