Dear Рома, this is not a bug. SHA.bytestringDigest returns the digest in binary format. If you hex-encode it, you get the usual textual representation: Prelude> import qualified Data.ByteString.Lazy.Char8 as LBS Prelude LBS> import qualified Data.Digest.Pure.SHA as SHA Prelude LBS SHA> let signature = SHA.hmacSha256 (LBS.pack "1") (LBS.pack "") Prelude LBS SHA> signature 49f41477fa1bfc3b4792d5233b6a659f4bc1772692e9d5fe7db0624a300652eb Prelude LBS SHA> SHA.showDigest signature "49f41477fa1bfc3b4792d5233b6a659f4bc1772692e9d5fe7db0624a300652eb" Prelude LBS SHA> let bs = SHA.bytestringDigest signature Prelude LBS SHA> Data.ByteString.Base16.Lazy.encode bs "49f41477fa1bfc3b4792d5233b6a659f4bc1772692e9d5fe7db0624a300652eb" Cheers, Joachim Am Dienstag, den 27.03.2018, 20:55 +0700 schrieb Рома Тенцер: > Package: libghc-sha-dev > Version: 1.6.4.2-6+b1 > Severity: normal > > When I use bytestringDigest i have a gibberish instead of proper > signature. I test it with hmacSha256, sha256 and sha512 with the same > result. showDigest works fine. An example is attached. > > -- System Information: > Debian Release: 9.4 > APT prefers stable-updates > APT policy: (500, 'stable-updates'), (500, 'stable') > Architecture: i386 (i686) > > Kernel: Linux 4.9.0-6-686-pae (SMP w/1 CPU core) > Locale: LANG=ru_RU.utf8, LC_CTYPE=ru_RU.utf8 (charmap=UTF-8), > LANGUAGE=ru_RU.utf8 (charmap=UTF-8) > Shell: /bin/sh linked to /bin/dash > Init: systemd (via /run/systemd/system) > > Versions of packages libghc-sha-dev depends on: > ii ghc [libghc-bytestring-dev-0.10.8.1-3ddfb] 8.0.1-17+b1 > ii libc6 2.24-11+deb9u3 > pn libghc-array-dev-0.5.1.1-fa350 <none> > pn libghc-base-dev-4.9.0.0-1bac3 <none> > pn libghc-binary-dev-0.8.3.0-567c5 <none> > ii libgmp10 2:6.1.2+dfsg-1 > > libghc-sha-dev recommends no packages. > > Versions of packages libghc-sha-dev suggests: > ii libghc-sha-doc 1.6.4.2-6 > pn libghc-sha-prof <none> > > -- no debconf information > > _______________________________________________ > Pkg-haskell-maintainers mailing list > Pkg-haskell-maintainers@lists.alioth.debian.org > http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-haskell-maintainers -- Joachim “nomeata” Breitner Debian Developer nomeata@debian.org • https://people.debian.org/~nomeata XMPP: nomeata@joachim-breitner.de • GPG-Key: 0xF0FBF51F https://www.joachim-breitner.de/
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