[openssl/openssl] 712d9c: Revert "bn: Add fixed length (n=6), unrolled PPC M...

[Tomas Mraz]

  Branch: refs/heads/master
  Home:   https://github.openssl.org/openssl/openssl
  Commit: 712d9cc90e355b2c98a959d4e9398610d2269c9e
      https://github.openssl.org/openssl/openssl/commit/712d9cc90e355b2c98a959d4e9398610d2269c9e
  Author: Tomas Mraz <tomas at openssl.org>
  Date:   2022-06-15 (Wed, 15 Jun 2022)

  Changed paths:
    M crypto/bn/asm/ppc64-mont-fixed.pl
    M crypto/bn/bn_ppc.c
    M crypto/bn/build.info

  Log Message:
  -----------
  Revert "bn: Add fixed length (n=6), unrolled PPC Montgomery Multiplication"

This reverts commit 0d40ca47bd86e74a95c3a2f5fb6c67cdbee93c79.

It was found that the computation produces incorrect results in some
cases.

Reviewed-by: Dmitry Belyavskiy <beldmit at gmail.com>
Reviewed-by: Paul Dale <pauli at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18512)


  Commit: 14f95126c098358c434d59835834f9f0be7ea498
      https://github.openssl.org/openssl/openssl/commit/14f95126c098358c434d59835834f9f0be7ea498
  Author: Tomas Mraz <tomas at openssl.org>
  Date:   2022-06-15 (Wed, 15 Jun 2022)

  Changed paths:
    M test/recipes/30-test_evp_data/evppkey_ecdsa.txt

  Log Message:
  -----------
  Testcase for regression by PPC64 fixed length montgomery multiplication

Reviewed-by: Dmitry Belyavskiy <beldmit at gmail.com>
Reviewed-by: Paul Dale <pauli at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18512)


Compare: https://github.openssl.org/openssl/openssl/compare/e9a806b2c265...14f95126c098