Opened 6 years ago

Closed 6 years ago

#9494 closed enhancement (fixed)


Reported by: bdubbs@… Owned by: bdubbs@…
Priority: normal Milestone: 8.1
Component: BOOK Version: SVN
Severity: normal Keywords:


New minor version.

Change History (3)

comment:1 by bdubbs@…, 6 years ago

Owner: changed from blfs-book@… to bdubbs@…
Status: newassigned

comment:2 by bdubbs@…, 6 years ago

Noteworthy changes in version 1.8.0 (2017-07-18) [C22/A2/R0]

New interfaces:

  • New cipher mode XTS
  • New hash function Blake-2
  • New function gcry_mpi_point_copy.
  • New function gcry_get_config.
  • GCRYCTL_REINIT_SYSCALL_CLAMP allows to init nPth after Libgcrypt.
  • New gobal configuration file /etc/gcrypt/random.conf.

Extended interfaces:

  • GCRYCTL_PRINT_CONFIG does now also print build information for libgpg-error and the used compiler version.
  • GCRY_CIPHER_MODE_CFB8 is now supported.
  • Add Stribog OIDs. [also in 1.7.4]


  • A jitter based entropy collector is now used in addition to the other entropy collectors.
  • Optimized gcry_md_hash_buffers for SHA-256 and SHA-512.
  • More ARMv8/AArch32 improvements for AES, GCM, SHA-256, and SHA-1. [also in 1.7.4]
  • Add ARMv8/AArch32 assembly implementation for Twofish and Camellia. [also in 1.7.4]
  • Add bulk processing implementation for ARMv8/AArch32. [also in 1.7.4]
  • Improve the DRBG performance and sync the code with the Linux version. [also in 1.7.4]

Internal changes:

  • Libgpg-error 1.25 is now required. This avoids stalling of nPth threads due to contention on internal Libgcrypt locks (e.g. the random pool lock).
  • The system call clamp of libgpg-error is now used to wrap the blocking read of /dev/random. This allows other nPth threads to run while Libgcrypt is gathering entropy.
  • When secure memory is requested by the MPI functions or by gcry_xmalloc_secure, they do not anymore lead to a fatal error if the secure memory pool is used up. Instead new pools are allocated as needed. These new pools are not protected against being swapped out (mlock can't be used). However, these days this is considered a minor issue and can easily be mitigated by using encrypted swap space. [also in 1.7.4]

Bug fixes:

  • Fix AES CTR self-check detected failure in the SSSE3 based implementation. [also in 1.7.6]
  • Remove gratuitous select before the getrandom syscall. [also in 1.7.6]
  • Fix regression in mlock detection. [bug#2870] [also in 1.7.5]
  • Fix GOST 28147 CryptoPro-B S-box. [also in 1.7.4]
  • Fix error code handling of mlock calls. [also in 1.7.4]
  • Fix possible timing attack on EdDSA session key. [also in 1.7.7]
  • Fix long standing bug in secure memory implementation which could lead to a segv on free. [bug#3027] [also in 1.7.7]
  • Mitigate a flush+reload side-channel attack on RSA secret keys dubbed "Sliding right into disaster". For details see <>. [CVE-2017-7526] [also in 1.7.8]
  • Interface changes relative to the 1.7.0 release:
       gcry_get_config                 NEW function.
       gcry_mpi_point_copy             NEW function.
       GCRY_MD_BLAKE2B_512             NEW constant.
       GCRY_MD_BLAKE2B_384             NEW constant.
       GCRY_MD_BLAKE2B_256             NEW constant.
       GCRY_MD_BLAKE2B_160             NEW constant.
       GCRY_MD_BLAKE2S_256             NEW constant.
       GCRY_MD_BLAKE2S_224             NEW constant.
       GCRY_MD_BLAKE2S_160             NEW constant.
       GCRY_MD_BLAKE2S_128             NEW constant.
       GCRY_CIPHER_MODE_XTS            NEW constant.
       gcry_md_info                    DEPRECATED.

comment:3 by bdubbs@…, 6 years ago

Resolution: fixed
Status: assignedclosed

Fixed at revision 18967.

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