DH standard group updates

1 files changed, 31 insertions, 89 deletions

diff --git a/crypto/src/crypto/agreement/DHStandardGroups.cs b/crypto/src/crypto/agreement/DHStandardGroups.cs
index 59f1ae72b..e334489c8 100644
--- a/crypto/src/crypto/agreement/DHStandardGroups.cs
+++ b/crypto/src/crypto/agreement/DHStandardGroups.cs
@@ -9,6 +9,8 @@ namespace Org.BouncyCastle.Crypto.Agreement
     /// <summary>Standard Diffie-Hellman groups from various IETF specifications.</summary>
     public class DHStandardGroups
     {
+        private static readonly BigInteger Two = BigInteger.ValueOf(2);
+
         private static BigInteger FromHex(string hex)
         {
             return new BigInteger(1, Hex.DecodeStrict(hex));
@@ -19,16 +21,16 @@ namespace Org.BouncyCastle.Crypto.Agreement
             return new DHParameters(FromHex(hexP), FromHex(hexG));
         }
 
-        private static DHParameters FromPGQ(string hexP, string hexG, string hexQ)
+        private static DHParameters SafePrimeGen2(string hexP)
         {
-            return new DHParameters(FromHex(hexP), FromHex(hexG), FromHex(hexQ));
+            return SafePrimeGen2(hexP, 0);
         }
 
-        private static DHParameters Rfc7919Parameters(string hexP, int l)
+        private static DHParameters SafePrimeGen2(string hexP, int l)
         {
-            // NOTE: All the groups in RFC 7919 use safe primes, i.e. q = (p-1)/2, and generator g = 2
+            // NOTE: A group using a safe prime (i.e. q = (p-1)/2), and generator g = 2
             BigInteger p = FromHex(hexP);
-            return new DHParameters(p, BigInteger.Two, p.ShiftRight(1), l);
+            return new DHParameters(p, Two, p.ShiftRight(1), l);
         }
 
         /*
@@ -37,15 +39,13 @@ namespace Org.BouncyCastle.Crypto.Agreement
         private static readonly string rfc2409_768_p = "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1"
             + "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" + "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245"
             + "E485B576625E7EC6F44C42E9A63A3620FFFFFFFFFFFFFFFF";
-        private static readonly string rfc2409_768_g = "02";
-        public static readonly DHParameters rfc2409_768 = FromPG(rfc2409_768_p, rfc2409_768_g);
+        public static readonly DHParameters rfc2409_768 = SafePrimeGen2(rfc2409_768_p);
 
         private static readonly string rfc2409_1024_p = "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1"
             + "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" + "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245"
             + "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" + "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381"
             + "FFFFFFFFFFFFFFFF";
-        private static readonly string rfc2409_1024_g = "02";
-        public static readonly DHParameters rfc2409_1024 = FromPG(rfc2409_1024_p, rfc2409_1024_g);
+        public static readonly DHParameters rfc2409_1024 = SafePrimeGen2(rfc2409_1024_p);
 
         /*
          * RFC 3526
@@ -55,8 +55,8 @@ namespace Org.BouncyCastle.Crypto.Agreement
             + "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" + "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D"
             + "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" + "83655D23DCA3AD961C62F356208552BB9ED529077096966D"
             + "670C354E4ABC9804F1746C08CA237327FFFFFFFFFFFFFFFF";
-        private static readonly string rfc3526_1536_g = "02";
-        public static readonly DHParameters rfc3526_1536 = FromPG(rfc3526_1536_p, rfc3526_1536_g);
+        private static readonly int rfc3526_1536_l = 200; // RFC3526/RFC7919
+        public static readonly DHParameters rfc3526_1536 = SafePrimeGen2(rfc3526_1536_p, rfc3526_1536_l);
 
         private static readonly string rfc3526_2048_p = "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1"
             + "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" + "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245"
@@ -64,8 +64,8 @@ namespace Org.BouncyCastle.Crypto.Agreement
             + "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" + "83655D23DCA3AD961C62F356208552BB9ED529077096966D"
             + "670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B" + "E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9"
             + "DE2BCBF6955817183995497CEA956AE515D2261898FA0510" + "15728E5A8AACAA68FFFFFFFFFFFFFFFF";
-        private static readonly string rfc3526_2048_g = "02";
-        public static readonly DHParameters rfc3526_2048 = FromPG(rfc3526_2048_p, rfc3526_2048_g);
+        private static readonly int rfc3526_2048_l = System.Math.Max(225, 112 * 2); // MAX(RFC3526/RFC7919,FIPS)
+        public static readonly DHParameters rfc3526_2048 = SafePrimeGen2(rfc3526_2048_p, rfc3526_2048_l);
 
         private static readonly string rfc3526_3072_p = "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1"
             + "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" + "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245"
@@ -76,8 +76,8 @@ namespace Org.BouncyCastle.Crypto.Agreement
             + "ECFB850458DBEF0A8AEA71575D060C7DB3970F85A6E1E4C7" + "ABF5AE8CDB0933D71E8C94E04A25619DCEE3D2261AD2EE6B"
             + "F12FFA06D98A0864D87602733EC86A64521F2B18177B200C" + "BBE117577A615D6C770988C0BAD946E208E24FA074E5AB31"
             + "43DB5BFCE0FD108E4B82D120A93AD2CAFFFFFFFFFFFFFFFF";
-        private static readonly string rfc3526_3072_g = "02";
-        public static readonly DHParameters rfc3526_3072 = FromPG(rfc3526_3072_p, rfc3526_3072_g);
+        private static readonly int rfc3526_3072_l = System.Math.Max(275, 128 * 2); // MAX(RFC3526/RFC7919,FIPS)
+        public static readonly DHParameters rfc3526_3072 = SafePrimeGen2(rfc3526_3072_p, rfc3526_3072_l);
 
         private static readonly string rfc3526_4096_p = "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1"
             + "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" + "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245"
@@ -91,8 +91,8 @@ namespace Org.BouncyCastle.Crypto.Agreement
             + "2583E9CA2AD44CE8DBBBC2DB04DE8EF92E8EFC141FBECAA6" + "287C59474E6BC05D99B2964FA090C3A2233BA186515BE7ED"
             + "1F612970CEE2D7AFB81BDD762170481CD0069127D5B05AA9" + "93B4EA988D8FDDC186FFB7DC90A6C08F4DF435C934063199"
             + "FFFFFFFFFFFFFFFF";
-        private static readonly string rfc3526_4096_g = "02";
-        public static readonly DHParameters rfc3526_4096 = FromPG(rfc3526_4096_p, rfc3526_4096_g);
+        private static readonly int rfc3526_4096_l = System.Math.Max(325, 152 * 2); // MAX(RFC3526/RFC7919,FIPS)
+        public static readonly DHParameters rfc3526_4096 = SafePrimeGen2(rfc3526_4096_p, rfc3526_4096_l);
 
         private static readonly string rfc3526_6144_p = "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E08"
             + "8A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B"
@@ -122,8 +122,8 @@ namespace Org.BouncyCastle.Crypto.Agreement
             + "B7C5DA76F550AA3D8A1FBFF0EB19CCB1A313D55CDA56C9EC2EF29632"
             + "387FE8D76E3C0468043E8F663F4860EE12BF2D5B0B7474D6E694F91E"
             + "6DCC4024FFFFFFFFFFFFFFFF";
-        private static readonly string rfc3526_6144_g = "02";
-        public static readonly DHParameters rfc3526_6144 = FromPG(rfc3526_6144_p, rfc3526_6144_g);
+        private static readonly int rfc3526_6144_l = System.Math.Max(375, 176 * 2); // MAX(RFC3526/RFC7919,FIPS)
+        public static readonly DHParameters rfc3526_6144 = SafePrimeGen2(rfc3526_6144_p, rfc3526_6144_l);
 
         private static readonly string rfc3526_8192_p = "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1"
             + "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" + "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245"
@@ -147,8 +147,8 @@ namespace Org.BouncyCastle.Crypto.Agreement
             + "062B3CF5B3A278A66D2A13F83F44F82DDF310EE074AB6A36" + "4597E899A0255DC164F31CC50846851DF9AB48195DED7EA1"
             + "B1D510BD7EE74D73FAF36BC31ECFA268359046F4EB879F92" + "4009438B481C6CD7889A002ED5EE382BC9190DA6FC026E47"
             + "9558E4475677E9AA9E3050E2765694DFC81F56E880B96E71" + "60C980DD98EDD3DFFFFFFFFFFFFFFFFF";
-        private static readonly string rfc3526_8192_g = "02";
-        public static readonly DHParameters rfc3526_8192 = FromPG(rfc3526_8192_p, rfc3526_8192_g);
+        private static readonly int rfc3526_8192_l = System.Math.Max(400, 200 * 2); // MAX(RFC3526/RFC7919,FIPS)
+        public static readonly DHParameters rfc3526_8192 = SafePrimeGen2(rfc3526_8192_p, rfc3526_8192_l);
 
         /*
          * RFC 4306
@@ -157,69 +157,6 @@ namespace Org.BouncyCastle.Crypto.Agreement
         public static readonly DHParameters rfc4306_1024 = rfc2409_1024;
 
         /*
-         * RFC 5114
-         */
-        private static readonly string rfc5114_1024_160_p = "B10B8F96A080E01DDE92DE5EAE5D54EC52C99FBCFB06A3C6"
-            + "9A6A9DCA52D23B616073E28675A23D189838EF1E2EE652C0" + "13ECB4AEA906112324975C3CD49B83BFACCBDD7D90C4BD70"
-            + "98488E9C219A73724EFFD6FAE5644738FAA31A4FF55BCCC0" + "A151AF5F0DC8B4BD45BF37DF365C1A65E68CFDA76D4DA708"
-            + "DF1FB2BC2E4A4371";
-        private static readonly string rfc5114_1024_160_g = "A4D1CBD5C3FD34126765A442EFB99905F8104DD258AC507F"
-            + "D6406CFF14266D31266FEA1E5C41564B777E690F5504F213" + "160217B4B01B886A5E91547F9E2749F4D7FBD7D3B9A92EE1"
-            + "909D0D2263F80A76A6A24C087A091F531DBF0A0169B6A28A" + "D662A4D18E73AFA32D779D5918D08BC8858F4DCEF97C2A24"
-            + "855E6EEB22B3B2E5";
-        private static readonly string rfc5114_1024_160_q = "F518AA8781A8DF278ABA4E7D64B7CB9D49462353";
-
-        /// <remarks>
-        /// Existence of a "hidden SNFS" backdoor cannot be ruled out. see https://eprint.iacr.org/2016/961.pdf .
-        /// </remarks>
-        [Obsolete("Existence of a 'hidden SNFS' backdoor cannot be ruled out.")]
-        public static readonly DHParameters rfc5114_1024_160 = FromPGQ(rfc5114_1024_160_p, rfc5114_1024_160_g,
-            rfc5114_1024_160_q);
-
-        private static readonly string rfc5114_2048_224_p = "AD107E1E9123A9D0D660FAA79559C51FA20D64E5683B9FD1"
-            + "B54B1597B61D0A75E6FA141DF95A56DBAF9A3C407BA1DF15" + "EB3D688A309C180E1DE6B85A1274A0A66D3F8152AD6AC212"
-            + "9037C9EDEFDA4DF8D91E8FEF55B7394B7AD5B7D0B6C12207" + "C9F98D11ED34DBF6C6BA0B2C8BBC27BE6A00E0A0B9C49708"
-            + "B3BF8A317091883681286130BC8985DB1602E714415D9330" + "278273C7DE31EFDC7310F7121FD5A07415987D9ADC0A486D"
-            + "CDF93ACC44328387315D75E198C641A480CD86A1B9E587E8" + "BE60E69CC928B2B9C52172E413042E9B23F10B0E16E79763"
-            + "C9B53DCF4BA80A29E3FB73C16B8E75B97EF363E2FFA31F71" + "CF9DE5384E71B81C0AC4DFFE0C10E64F";
-        private static readonly string rfc5114_2048_224_g = "AC4032EF4F2D9AE39DF30B5C8FFDAC506CDEBE7B89998CAF"
-            + "74866A08CFE4FFE3A6824A4E10B9A6F0DD921F01A70C4AFA" + "AB739D7700C29F52C57DB17C620A8652BE5E9001A8D66AD7"
-            + "C17669101999024AF4D027275AC1348BB8A762D0521BC98A" + "E247150422EA1ED409939D54DA7460CDB5F6C6B250717CBE"
-            + "F180EB34118E98D119529A45D6F834566E3025E316A330EF" + "BB77A86F0C1AB15B051AE3D428C8F8ACB70A8137150B8EEB"
-            + "10E183EDD19963DDD9E263E4770589EF6AA21E7F5F2FF381" + "B539CCE3409D13CD566AFBB48D6C019181E1BCFE94B30269"
-            + "EDFE72FE9B6AA4BD7B5A0F1C71CFFF4C19C418E1F6EC0179" + "81BC087F2A7065B384B890D3191F2BFA";
-        private static readonly string rfc5114_2048_224_q = "801C0D34C58D93FE997177101F80535A4738CEBCBF389A99B36371EB";
-
-        /// <remarks>
-        /// Existence of a "hidden SNFS" backdoor cannot be ruled out. see https://eprint.iacr.org/2016/961.pdf .
-        /// </remarks>
-        [Obsolete("Existence of a 'hidden SNFS' backdoor cannot be ruled out.")]
-        public static readonly DHParameters rfc5114_2048_224 = FromPGQ(rfc5114_2048_224_p, rfc5114_2048_224_g,
-            rfc5114_2048_224_q);
-
-        private static readonly string rfc5114_2048_256_p = "87A8E61DB4B6663CFFBBD19C651959998CEEF608660DD0F2"
-            + "5D2CEED4435E3B00E00DF8F1D61957D4FAF7DF4561B2AA30" + "16C3D91134096FAA3BF4296D830E9A7C209E0C6497517ABD"
-            + "5A8A9D306BCF67ED91F9E6725B4758C022E0B1EF4275BF7B" + "6C5BFC11D45F9088B941F54EB1E59BB8BC39A0BF12307F5C"
-            + "4FDB70C581B23F76B63ACAE1CAA6B7902D52526735488A0E" + "F13C6D9A51BFA4AB3AD8347796524D8EF6A167B5A41825D9"
-            + "67E144E5140564251CCACB83E6B486F6B3CA3F7971506026" + "C0B857F689962856DED4010ABD0BE621C3A3960A54E710C3"
-            + "75F26375D7014103A4B54330C198AF126116D2276E11715F" + "693877FAD7EF09CADB094AE91E1A1597";
-        private static readonly string rfc5114_2048_256_g = "3FB32C9B73134D0B2E77506660EDBD484CA7B18F21EF2054"
-            + "07F4793A1A0BA12510DBC15077BE463FFF4FED4AAC0BB555" + "BE3A6C1B0C6B47B1BC3773BF7E8C6F62901228F8C28CBB18"
-            + "A55AE31341000A650196F931C77A57F2DDF463E5E9EC144B" + "777DE62AAAB8A8628AC376D282D6ED3864E67982428EBC83"
-            + "1D14348F6F2F9193B5045AF2767164E1DFC967C1FB3F2E55" + "A4BD1BFFE83B9C80D052B985D182EA0ADB2A3B7313D3FE14"
-            + "C8484B1E052588B9B7D2BBD2DF016199ECD06E1557CD0915" + "B3353BBB64E0EC377FD028370DF92B52C7891428CDC67EB6"
-            + "184B523D1DB246C32F63078490F00EF8D647D148D4795451" + "5E2327CFEF98C582664B4C0F6CC41659";
-        private static readonly string rfc5114_2048_256_q = "8CF83642A709A097B447997640129DA299B1A47D1EB3750B"
-            + "A308B0FE64F5FBD3";
-
-        /// <remarks>
-        /// Existence of a "hidden SNFS" backdoor cannot be ruled out. see https://eprint.iacr.org/2016/961.pdf .
-        /// </remarks>
-        [Obsolete("Existence of a 'hidden SNFS' backdoor cannot be ruled out.")]
-        public static readonly DHParameters rfc5114_2048_256 = FromPGQ(rfc5114_2048_256_p, rfc5114_2048_256_g,
-            rfc5114_2048_256_q);
-
-        /*
          * RFC 5996
          */
         public static readonly DHParameters rfc5996_768 = rfc4306_768;
@@ -234,7 +171,8 @@ namespace Org.BouncyCastle.Crypto.Agreement
             + "30ACCA4F483A797ABC0AB182B324FB61D108A94BB2C8E3FB" + "B96ADAB760D7F4681D4F42A3DE394DF4AE56EDE76372BB19"
             + "0B07A7C8EE0A6D709E02FCE1CDF7E2ECC03404CD28342F61" + "9172FE9CE98583FF8E4F1232EEF28183C3FE3B1B4C6FAD73"
             + "3BB5FCBC2EC22005C58EF1837D1683B2C6F34A26C1B2EFFA" + "886B423861285C97FFFFFFFFFFFFFFFF";
-        public static readonly DHParameters rfc7919_ffdhe2048 = Rfc7919Parameters(rfc7919_ffdhe2048_p, 225);
+        private static readonly int rfc7919_ffdhe2048_l = System.Math.Max(225, 112 * 2); // MAX(RFC7919,FIPS)
+        public static readonly DHParameters rfc7919_ffdhe2048 = SafePrimeGen2(rfc7919_ffdhe2048_p, rfc7919_ffdhe2048_l);
 
         private static readonly string rfc7919_ffdhe3072_p = "FFFFFFFFFFFFFFFFADF85458A2BB4A9AAFDC5620273D3CF1"
             + "D8B9C583CE2D3695A9E13641146433FBCC939DCE249B3EF9" + "7D2FE363630C75D8F681B202AEC4617AD3DF1ED5D5FD6561"
@@ -245,7 +183,8 @@ namespace Org.BouncyCastle.Crypto.Agreement
             + "61B46FC9D6E6C9077AD91D2691F7F7EE598CB0FAC186D91C" + "AEFE130985139270B4130C93BC437944F4FD4452E2D74DD3"
             + "64F2E21E71F54BFF5CAE82AB9C9DF69EE86D2BC522363A0D" + "ABC521979B0DEADA1DBF9A42D5C4484E0ABCD06BFA53DDEF"
             + "3C1B20EE3FD59D7C25E41D2B66C62E37FFFFFFFFFFFFFFFF";
-        public static readonly DHParameters rfc7919_ffdhe3072 = Rfc7919Parameters(rfc7919_ffdhe3072_p, 275);
+        private static readonly int rfc7919_ffdhe3072_l = System.Math.Max(275, 128 * 2); // MAX(RFC7919,FIPS)
+        public static readonly DHParameters rfc7919_ffdhe3072 = SafePrimeGen2(rfc7919_ffdhe3072_p, rfc7919_ffdhe3072_l);
 
         private static readonly string rfc7919_ffdhe4096_p = "FFFFFFFFFFFFFFFFADF85458A2BB4A9AAFDC5620273D3CF1"
             + "D8B9C583CE2D3695A9E13641146433FBCC939DCE249B3EF9" + "7D2FE363630C75D8F681B202AEC4617AD3DF1ED5D5FD6561"
@@ -259,7 +198,8 @@ namespace Org.BouncyCastle.Crypto.Agreement
             + "87F55BA57E31CC7A7135C886EFB4318AED6A1E012D9E6832" + "A907600A918130C46DC778F971AD0038092999A333CB8B7A"
             + "1A1DB93D7140003C2A4ECEA9F98D0ACC0A8291CDCEC97DCF" + "8EC9B55A7F88A46B4DB5A851F44182E1C68A007E5E655F6A"
             + "FFFFFFFFFFFFFFFF";
-        public static readonly DHParameters rfc7919_ffdhe4096 = Rfc7919Parameters(rfc7919_ffdhe4096_p, 325);
+        private static readonly int rfc7919_ffdhe4096_l = System.Math.Max(325, 152 * 2); // MAX(RFC7919,FIPS)
+        public static readonly DHParameters rfc7919_ffdhe4096 = SafePrimeGen2(rfc7919_ffdhe4096_p, rfc7919_ffdhe4096_l);
 
         private static readonly string rfc7919_ffdhe6144_p = "FFFFFFFFFFFFFFFFADF85458A2BB4A9AAFDC5620273D3CF1"
             + "D8B9C583CE2D3695A9E13641146433FBCC939DCE249B3EF9" + "7D2FE363630C75D8F681B202AEC4617AD3DF1ED5D5FD6561"
@@ -278,7 +218,8 @@ namespace Org.BouncyCastle.Crypto.Agreement
             + "B3A739C1226116820AE8DB5847A67CBEF9C9091B462D538C" + "D72B03746AE77F5E62292C311562A846505DC82DB854338A"
             + "E49F5235C95B91178CCF2DD5CACEF403EC9D1810C6272B04" + "5B3B71F9DC6B80D63FDD4A8E9ADB1E6962A69526D43161C1"
             + "A41D570D7938DAD4A40E329CD0E40E65FFFFFFFFFFFFFFFF";
-        public static readonly DHParameters rfc7919_ffdhe6144 = Rfc7919Parameters(rfc7919_ffdhe6144_p, 375);
+        private static readonly int rfc7919_ffdhe6144_l = System.Math.Max(375, 176 * 2); // MAX(RFC7919,FIPS)
+        public static readonly DHParameters rfc7919_ffdhe6144 = SafePrimeGen2(rfc7919_ffdhe6144_p, rfc7919_ffdhe6144_l);
 
         private static readonly string rfc7919_ffdhe8192_p = "FFFFFFFFFFFFFFFFADF85458A2BB4A9AAFDC5620273D3CF1"
             + "D8B9C583CE2D3695A9E13641146433FBCC939DCE249B3EF9" + "7D2FE363630C75D8F681B202AEC4617AD3DF1ED5D5FD6561"
@@ -302,6 +243,7 @@ namespace Org.BouncyCastle.Crypto.Agreement
             + "51AA691E0E423CFC99E9E31650C1217B624816CDAD9A95F9" + "D5B8019488D9C0A0A1FE3075A577E23183F81D4A3F2FA457"
             + "1EFC8CE0BA8A4FE8B6855DFE72B0A66EDED2FBABFBE58A30" + "FAFABE1C5D71A87E2F741EF8C1FE86FEA6BBFDE530677F0D"
             + "97D11D49F7A8443D0822E506A9F4614E011E2A94838FF88C" + "D68C8BB7C5C6424CFFFFFFFFFFFFFFFF";
-        public static readonly DHParameters rfc7919_ffdhe8192 = Rfc7919Parameters(rfc7919_ffdhe8192_p, 400);
+        private static readonly int rfc7919_ffdhe8192_l = System.Math.Max(400, 200 * 2); // MAX(RFC7919,FIPS)
+        public static readonly DHParameters rfc7919_ffdhe8192 = SafePrimeGen2(rfc7919_ffdhe8192_p, rfc7919_ffdhe8192_l);
     }
 }