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4c0c4db070
* guix/utils.scm (bytevector->base16-string, base16-string->bytevector):
Move to...
* guix/base16.scm: ... here. New file.
* tests/utils.scm ("bytevector->base16-string->bytevector"): Move to...
* tests/base16.scm: ... here. New file.
* Makefile.am (MODULES): Add guix/base16.scm.
(SCM_TESTS): Add tests/base16.scm.
* build-aux/download.scm, guix/derivations.scm,
guix/docker.scm, guix/import/snix.scm, guix/pk-crypto.scm,
guix/scripts/authenticate.scm, guix/scripts/download.scm,
guix/scripts/hash.scm, guix/store.scm, tests/hash.scm,
tests/pk-crypto.scm: Adjust imports accordingly.
290 lines
11 KiB
Scheme
290 lines
11 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2013, 2014, 2017 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (test-pk-crypto)
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#:use-module (guix pk-crypto)
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#:use-module (guix utils)
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#:use-module (guix base16)
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#:use-module (guix hash)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-11)
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#:use-module (srfi srfi-26)
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#:use-module (srfi srfi-64)
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#:use-module (rnrs bytevectors)
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#:use-module (rnrs io ports)
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#:use-module (ice-9 match))
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;; Test the (guix pk-crypto) module.
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(define %key-pair
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;; RSA key pair that was generated with:
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;; (generate-key (string->canonical-sexp "(genkey (rsa (nbits 4:1024)))"))
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;; which takes a bit of time.
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"(key-data
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(public-key
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(rsa
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(n #00C1F764069F54FFE93A126B02328903E984E4AE3AF6DF402B5B6B3907911B88C385F1BA76A002EC9DEA109A5228EF0E62EE31A06D1A5861CAB474F6C857AC66EB65A1905F25BBA1869579E73A3B7FED13AF5A1667326F88CDFC2FF24B03C14FD1384AA7E73CA89572880B606E3A974E15347963FC7B6378574936A47580DBCB45#)
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(e #010001#)))
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(private-key
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(rsa
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(n #00C1F764069F54FFE93A126B02328903E984E4AE3AF6DF402B5B6B3907911B88C385F1BA76A002EC9DEA109A5228EF0E62EE31A06D1A5861CAB474F6C857AC66EB65A1905F25BBA1869579E73A3B7FED13AF5A1667326F88CDFC2FF24B03C14FD1384AA7E73CA89572880B606E3A974E15347963FC7B6378574936A47580DBCB45#)
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(e #010001#)
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(d #58CAD84653D0046A8EC3F9AA82D9C829B145422109FC3F12DA01A694B92FA296E70D366FB166454D30E632CEE3A033B4C41781BA10325F69FCDC0250CA19C8EEB352FA085992494098DB133E682ED38A931701F0DED1A1E508F4341A4FB446A04F019427C7CB3C44F251EEA9D386100DA80F125E0FD5CE1B0DFEC6D21516EACD#)
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(p #00D47F185147EC39393CCDA4E7323FFC20FC8B8073E2A54DD63BA392A66975E4204CA48572496A9DFD7522436B852C07472A5AB25B7706F7C14E6F33FBC420FF3B#)
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(q #00E9AD22F158060BC9AE3601DA623AFC60FFF3058795802CA92371C00097335CF9A23D7782DE353C9DBA93D7BB99E6A24A411107605E722481C5C191F80D7EB77F#)
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(u #59B45B95AE01A7A7370FAFDB08FE73A4793CE37F228961B09B1B1E7DDAD9F8D3E28F5C5E8B4B067E6B8E0BBF3F690B42991A79E46108DDCDA2514323A66964DE#))))")
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(define %ecc-key-pair
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;; Ed25519 key pair generated with:
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;; (generate-key (string->canonical-sexp "(genkey (ecdsa (curve Ed25519) (flags rfc6979 transient)))"))
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"(key-data
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(public-key
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(ecc
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(curve Ed25519)
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(q #94869C1B9E69DB8DD910B7F7F4D6E56A63A964A59AE8F90F6703ACDDF6F50C81#)))
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(private-key
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(ecc
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(curve Ed25519)
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(q #94869C1B9E69DB8DD910B7F7F4D6E56A63A964A59AE8F90F6703ACDDF6F50C81#)
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(d #6EFB32D0B4EC6B3237B523539F1979379B82726AAA605EB2FBA6775B2B777B78#))))")
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(test-begin "pk-crypto")
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(test-assert "version"
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(gcrypt-version))
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(let ((sexps '("(foo bar)"
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;; In Libgcrypt 1.5.3 the following integer is rendered as
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;; binary, whereas in 1.6.0 it's rendered as is (hexadecimal.)
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;;"#C0FFEE#"
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"(genkey \n (rsa \n (nbits \"1024\")\n )\n )")))
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(test-equal "string->canonical-sexp->string"
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sexps
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(let ((sexps (map string->canonical-sexp sexps)))
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(and (every canonical-sexp? sexps)
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(map (compose string-trim-both canonical-sexp->string) sexps)))))
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(gc) ; stress test!
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(let ((sexps `(("(foo bar)" foo -> "(foo bar)")
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("(foo (bar (baz 3:123)))" baz -> "(baz \"123\")")
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("(foo (bar 3:123))" baz -> #f))))
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(test-equal "find-sexp-token"
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(map (match-lambda
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((_ _ '-> expected)
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expected))
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sexps)
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(map (match-lambda
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((input token '-> _)
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(let ((sexp (find-sexp-token (string->canonical-sexp input) token)))
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(and sexp
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(string-trim-both (canonical-sexp->string sexp))))))
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sexps)))
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(gc)
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(test-equal "canonical-sexp-length"
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'(0 1 2 4 0 0)
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(map (compose canonical-sexp-length string->canonical-sexp)
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'("()" "(a)" "(a b)" "(a #616263# b #C001#)" "a" "#123456#")))
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(test-equal "canonical-sexp-list?"
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'(#t #f #t #f)
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(map (compose canonical-sexp-list? string->canonical-sexp)
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'("()" "\"abc\"" "(a b c)" "#123456#")))
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(gc)
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(test-equal "canonical-sexp-car + cdr"
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'("(b \n (c xyz)\n )")
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(let ((lst (string->canonical-sexp "(a (b (c xyz)))")))
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(map (lambda (sexp)
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(and sexp (string-trim-both (canonical-sexp->string sexp))))
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;; Note: 'car' returns #f when the first element is an atom.
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(list (canonical-sexp-car (canonical-sexp-cdr lst))))))
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(gc)
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(test-equal "canonical-sexp-nth"
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'("(b pqr)" "(c \"456\")" "(d xyz)" #f #f)
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(let ((lst (string->canonical-sexp "(a (b 3:pqr) (c 3:456) (d 3:xyz))")))
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;; XXX: In Libgcrypt 1.5.3, (canonical-sexp-nth lst 0) returns LST, whereas in
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;; 1.6.0 it returns #f.
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(map (lambda (sexp)
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(and sexp (string-trim-both (canonical-sexp->string sexp))))
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(unfold (cut > <> 5)
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(cut canonical-sexp-nth lst <>)
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1+
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1))))
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(gc)
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(test-equal "canonical-sexp-nth-data"
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`(Name Otto Meier #f ,(base16-string->bytevector "123456") #f)
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(let ((lst (string->canonical-sexp
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"(Name Otto Meier (address Burgplatz) #123456#)")))
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(unfold (cut > <> 5)
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(cut canonical-sexp-nth-data lst <>)
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1+
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0)))
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(let ((bv (base16-string->bytevector
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"5eff0b55c9c5f5e87b4e34cd60a2d5654ca1eb78c7b3c67c3179fed1cff07b4c")))
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(test-equal "hash corrupt due to restrictive locale encoding"
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bv
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;; In Guix up to 0.6 included this test would fail because at some point
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;; the hash value would be cropped to ASCII. In practice 'guix
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;; authenticate' would produce invalid signatures that would fail
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;; signature verification. See <http://bugs.gnu.org/17312>.
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(let ((locale (setlocale LC_ALL)))
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(dynamic-wind
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(lambda ()
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(setlocale LC_ALL "C"))
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(lambda ()
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(hash-data->bytevector
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(string->canonical-sexp
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(canonical-sexp->string
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(bytevector->hash-data bv "sha256")))))
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(lambda ()
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(setlocale LC_ALL locale))))))
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(gc)
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;; XXX: The test below is typically too long as it needs to gather enough entropy.
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;; (test-assert "generate-key"
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;; (let ((key (generate-key (string->canonical-sexp
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;; "(genkey (rsa (nbits 3:128)))"))))
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;; (and (canonical-sexp? key)
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;; (find-sexp-token key 'key-data)
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;; (find-sexp-token key 'public-key)
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;; (find-sexp-token key 'private-key))))
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(test-assert "bytevector->hash-data->bytevector"
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(let* ((bv (sha256 (string->utf8 "Hello, world.")))
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(data (bytevector->hash-data bv "sha256")))
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(and (canonical-sexp? data)
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(let-values (((value algo) (hash-data->bytevector data)))
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(and (string=? algo "sha256")
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(bytevector=? value bv))))))
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(test-equal "key-type"
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'(rsa ecc)
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(map (compose key-type
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(cut find-sexp-token <> 'public-key)
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string->canonical-sexp)
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(list %key-pair %ecc-key-pair)))
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(test-assert "sign + verify"
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(let* ((pair (string->canonical-sexp %key-pair))
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(secret (find-sexp-token pair 'private-key))
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(public (find-sexp-token pair 'public-key))
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(data (bytevector->hash-data
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(sha256 (string->utf8 "Hello, world."))
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#:key-type (key-type public)))
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(sig (sign data secret)))
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(and (verify sig data public)
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(not (verify sig
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(bytevector->hash-data
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(sha256 (string->utf8 "Hi!"))
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#:key-type (key-type public))
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public)))))
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;; Ed25519 appeared in libgcrypt 1.6.0.
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(test-skip (if (version>? (gcrypt-version) "1.6.0") 0 1))
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(test-assert "sign + verify, Ed25519"
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(let* ((pair (string->canonical-sexp %ecc-key-pair))
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(secret (find-sexp-token pair 'private-key))
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(public (find-sexp-token pair 'public-key))
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(data (bytevector->hash-data
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(sha256 (string->utf8 "Hello, world."))))
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(sig (sign data secret)))
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(and (verify sig data public)
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(not (verify sig
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(bytevector->hash-data
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(sha256 (string->utf8 "Hi!")))
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public)))))
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(gc)
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(test-equal "canonical-sexp->sexp"
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`((data
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(flags pkcs1)
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(hash sha256
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,(base16-string->bytevector
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"2749f0ea9f26c6c7be746a9cff8fa4c2f2a02b000070dba78429e9a11f87c6eb")))
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(public-key
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(rsa
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(n ,(base16-string->bytevector
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(string-downcase
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"00C1F764069F54FFE93A126B02328903E984E4AE3AF6DF402B5B6B3907911B88C385F1BA76A002EC9DEA109A5228EF0E62EE31A06D1A5861CAB474F6C857AC66EB65A1905F25BBA1869579E73A3B7FED13AF5A1667326F88CDFC2FF24B03C14FD1384AA7E73CA89572880B606E3A974E15347963FC7B6378574936A47580DBCB45")))
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(e ,(base16-string->bytevector
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"010001")))))
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(list (canonical-sexp->sexp
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(string->canonical-sexp
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"(data
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(flags pkcs1)
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(hash \"sha256\"
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#2749f0ea9f26c6c7be746a9cff8fa4c2f2a02b000070dba78429e9a11f87c6eb#))"))
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(canonical-sexp->sexp
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(find-sexp-token (string->canonical-sexp %key-pair)
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'public-key))))
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(let ((lst
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`((data
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(flags pkcs1)
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(hash sha256
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,(base16-string->bytevector
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"2749f0ea9f26c6c7be746a9cff8fa4c2f2a02b000070dba78429e9a11f87c6eb")))
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(public-key
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(rsa
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(n ,(base16-string->bytevector
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(string-downcase
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"00C1F764069F54FFE93A126B02328903E984E4AE3AF6DF402B5B6B3907911B88C385F1BA76A002EC9DEA109A5228EF0E62EE31A06D1A5861CAB474F6C857AC66EB65A1905F25BBA1869579E73A3B7FED13AF5A1667326F88CDFC2FF24B03C14FD1384AA7E73CA89572880B606E3A974E15347963FC7B6378574936A47580DBCB45")))
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(e ,(base16-string->bytevector
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"010001"))))
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,(base16-string->bytevector
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"2749f0ea9f26c6c7be746a9cff8fa4c2f2a02b000070dba78429e9a11f87c6eb"))))
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(test-equal "sexp->canonical-sexp->sexp"
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lst
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(map (compose canonical-sexp->sexp sexp->canonical-sexp)
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lst)))
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(let ((sexp `(signature
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(public-key
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(rsa
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(n ,(make-bytevector 1024 1))
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(e ,(base16-string->bytevector "010001")))))))
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(test-equal "https://bugs.g10code.com/gnupg/issue1594"
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;; The gcrypt bug above was primarily affecting our uses in
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;; 'canonical-sexp->sexp', typically when applied to a signature sexp (in
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;; 'guix authenticate -verify') with a "big" RSA key, such as 4096 bits.
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sexp
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(canonical-sexp->sexp (sexp->canonical-sexp sexp))))
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(test-end)
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