From 43a123c1ae6613b3efeed291fa552ecd909d3acf Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:23:18 +0200 Subject: Adding upstream version 1.20.14. Signed-off-by: Daniel Baumann --- src/crypto/ecdsa/ecdsa_s390x.s | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 src/crypto/ecdsa/ecdsa_s390x.s (limited to 'src/crypto/ecdsa/ecdsa_s390x.s') diff --git a/src/crypto/ecdsa/ecdsa_s390x.s b/src/crypto/ecdsa/ecdsa_s390x.s new file mode 100644 index 0000000..ba5b3bf --- /dev/null +++ b/src/crypto/ecdsa/ecdsa_s390x.s @@ -0,0 +1,28 @@ +// Copyright 2020 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +#include "textflag.h" + +// func kdsa(fc uint64, params *[4096]byte) (errn uint64) +TEXT ·kdsa(SB), NOSPLIT|NOFRAME, $0-24 + MOVD fc+0(FP), R0 // function code + MOVD params+8(FP), R1 // address parameter block + +loop: + WORD $0xB93A0008 // compute digital signature authentication + BVS loop // branch back if interrupted + BGT retry // signing unsuccessful, but retry with new CSPRN + BLT error // condition code of 1 indicates a failure + +success: + MOVD $0, errn+16(FP) // return 0 - sign/verify was successful + RET + +error: + MOVD $1, errn+16(FP) // return 1 - sign/verify failed + RET + +retry: + MOVD $2, errn+16(FP) // return 2 - sign/verify was unsuccessful -- if sign, retry with new RN + RET -- cgit v1.2.3