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author | Peter Dettman <peter.dettman@bouncycastle.org> | 2016-11-30 05:36:43 +0700 |
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committer | Peter Dettman <peter.dettman@bouncycastle.org> | 2016-11-30 05:36:43 +0700 |
commit | 84b2be3efb82184703e350c26d7f13330395c15b (patch) | |
tree | 006bf62079fa35da5ae2d4cb49d0d91570da4d3d /crypto/src/math/raw/Nat160.cs | |
parent | After receiving fatal alert, don't echo that alert to peer (from bc-java) (diff) | |
download | BouncyCastle.NET-ed25519-84b2be3efb82184703e350c26d7f13330395c15b.tar.xz |
Fix carry propagation bug in Nat???.Square methods
Diffstat (limited to 'crypto/src/math/raw/Nat160.cs')
-rw-r--r-- | crypto/src/math/raw/Nat160.cs | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/crypto/src/math/raw/Nat160.cs b/crypto/src/math/raw/Nat160.cs index 153ac0a43..1fd00e576 100644 --- a/crypto/src/math/raw/Nat160.cs +++ b/crypto/src/math/raw/Nat160.cs @@ -604,8 +604,8 @@ namespace Org.BouncyCastle.Math.Raw } ulong x_3 = x[3]; - ulong zz_5 = zz[5]; - ulong zz_6 = zz[6]; + ulong zz_5 = zz[5] + (zz_4 >> 32); zz_4 &= M; + ulong zz_6 = zz[6] + (zz_5 >> 32); zz_5 &= M; { zz_3 += x_3 * x_0; w = (uint)zz_3; @@ -619,8 +619,8 @@ namespace Org.BouncyCastle.Math.Raw } ulong x_4 = x[4]; - ulong zz_7 = zz[7]; - ulong zz_8 = zz[8]; + ulong zz_7 = zz[7] + (zz_6 >> 32); zz_6 &= M; + ulong zz_8 = zz[8] + (zz_7 >> 32); zz_7 &= M; { zz_4 += x_4 * x_0; w = (uint)zz_4; @@ -699,8 +699,8 @@ namespace Org.BouncyCastle.Math.Raw } ulong x_3 = x[xOff + 3]; - ulong zz_5 = zz[zzOff + 5]; - ulong zz_6 = zz[zzOff + 6]; + ulong zz_5 = zz[zzOff + 5] + (zz_4 >> 32); zz_4 &= M; + ulong zz_6 = zz[zzOff + 6] + (zz_5 >> 32); zz_5 &= M; { zz_3 += x_3 * x_0; w = (uint)zz_3; @@ -714,8 +714,8 @@ namespace Org.BouncyCastle.Math.Raw } ulong x_4 = x[xOff + 4]; - ulong zz_7 = zz[zzOff + 7]; - ulong zz_8 = zz[zzOff + 8]; + ulong zz_7 = zz[zzOff + 7] + (zz_6 >> 32); zz_6 &= M; + ulong zz_8 = zz[zzOff + 8] + (zz_7 >> 32); zz_7 &= M; { zz_4 += x_4 * x_0; w = (uint)zz_4; |