[openssh-commits] [openssh] 04/07: upstream: basic unit test for sshsig.[ch], including FIDO keys

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commit 5edfa1690e9a75048971fd8775f7c16d153779db
Author: djm at openbsd.org <djm at openbsd.org>
Date:   Fri Jun 19 04:32:09 2020 +0000

    upstream: basic unit test for sshsig.[ch], including FIDO keys
    
    verification only so far
    
    OpenBSD-Regress-ID: fb1f946c8fc59206bc6a6666e577b5d5d7e45896
---
 .gitignore                                       |   1 +
 regress/unittests/sshsig/Makefile                |  25 +++++
 regress/unittests/sshsig/mktestdata.sh           |  42 ++++++++
 regress/unittests/sshsig/testdata/dsa            |  12 +++
 regress/unittests/sshsig/testdata/dsa.pub        |   1 +
 regress/unittests/sshsig/testdata/dsa.sig        |  13 +++
 regress/unittests/sshsig/testdata/ecdsa          |   5 +
 regress/unittests/sshsig/testdata/ecdsa.pub      |   1 +
 regress/unittests/sshsig/testdata/ecdsa.sig      |   7 ++
 regress/unittests/sshsig/testdata/ecdsa_sk       |  13 +++
 regress/unittests/sshsig/testdata/ecdsa_sk.pub   |   1 +
 regress/unittests/sshsig/testdata/ecdsa_sk.sig   |   8 ++
 regress/unittests/sshsig/testdata/ed25519        |   7 ++
 regress/unittests/sshsig/testdata/ed25519.pub    |   1 +
 regress/unittests/sshsig/testdata/ed25519.sig    |   6 ++
 regress/unittests/sshsig/testdata/ed25519_sk     |   8 ++
 regress/unittests/sshsig/testdata/ed25519_sk.pub |   1 +
 regress/unittests/sshsig/testdata/ed25519_sk.sig |   7 ++
 regress/unittests/sshsig/testdata/namespace      |   1 +
 regress/unittests/sshsig/testdata/rsa            |  39 ++++++++
 regress/unittests/sshsig/testdata/rsa.pub        |   1 +
 regress/unittests/sshsig/testdata/rsa.sig        |  19 ++++
 regress/unittests/sshsig/testdata/signed-data    |   1 +
 regress/unittests/sshsig/tests.c                 | 120 +++++++++++++++++++++++
 24 files changed, 340 insertions(+)

diff --git a/.gitignore b/.gitignore
index 34a95721..043674f4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,4 +30,5 @@ ssh-pkcs11-helper
 ssh-sk-helper
 sshd
 !regress/misc/fuzz-harness/Makefile
+!regress/unittests/sshsig/Makefile
 tags
diff --git a/regress/unittests/sshsig/Makefile b/regress/unittests/sshsig/Makefile
new file mode 100644
index 00000000..4b607df4
--- /dev/null
+++ b/regress/unittests/sshsig/Makefile
@@ -0,0 +1,25 @@
+#	$OpenBSD: Makefile,v 1.1 2020/06/19 04:32:09 djm Exp $
+
+PROG=test_sshsig
+SRCS=tests.c
+
+# From usr.bin/ssh
+SRCS+=sshbuf-getput-basic.c sshbuf-getput-crypto.c sshbuf-misc.c sshbuf.c
+SRCS+=sshbuf-io.c atomicio.c sshkey.c authfile.c cipher.c log.c ssh-rsa.c
+SRCS+=ssh-dss.c ssh-ecdsa.c ssh-ed25519.c mac.c umac.c umac128.c hmac.c misc.c
+SRCS+=ssherr.c uidswap.c cleanup.c xmalloc.c match.c krl.c fatal.c
+SRCS+=addrmatch.c bitmap.c sshsig.c
+SRCS+=ed25519.c hash.c ge25519.c fe25519.c sc25519.c verify.c
+SRCS+=cipher-chachapoly.c chacha.c poly1305.c ssh-ecdsa-sk.c ssh-sk.c
+SRCS+=ssh-ed25519-sk.c sk-usbhid.c
+
+SRCS+=digest-openssl.c
+#SRCS+=digest-libc.c
+SRCS+=utf8.c
+
+REGRESS_TARGETS=run-regress-${PROG}
+
+run-regress-${PROG}: ${PROG}
+	env ${TEST_ENV} ./${PROG} ${UNITTEST_ARGS} -d ${.CURDIR}/testdata
+
+.include <bsd.regress.mk>
diff --git a/regress/unittests/sshsig/mktestdata.sh b/regress/unittests/sshsig/mktestdata.sh
new file mode 100755
index 00000000..d2300f9c
--- /dev/null
+++ b/regress/unittests/sshsig/mktestdata.sh
@@ -0,0 +1,42 @@
+#!/bin/sh
+# $OpenBSD: mktestdata.sh,v 1.1 2020/06/19 04:32:09 djm Exp $
+
+NAMESPACE=unittest
+
+set -ex
+
+cd testdata
+
+if [ -f ../../../misc/sk-dummy/sk-dummy.so ] ; then
+	SK_DUMMY=../../../misc/sk-dummy/sk-dummy.so
+elif [ -f ../../../misc/sk-dummy/obj/sk-dummy.so ] ; then
+	SK_DUMMY=../../../misc/sk-dummy/obj/sk-dummy.so
+else
+	echo "Can't find sk-dummy.so" 1>&2
+	exit 1
+fi
+
+rm -f signed-data namespace
+rm -f rsa dsa ecdsa ed25519 ecdsa_sk ed25519_sk
+rm -f rsa.sig dsa.sig ecdsa.sig ed25519.sig ecdsa_sk.sig ed25519_sk.sig
+
+printf "This is a test, this is only a test" > signed-data
+printf "$NAMESPACE" > namespace
+
+ssh-keygen -t rsa -C "RSA test" -N "" -f rsa -m PEM
+ssh-keygen -t dsa -C "DSA test" -N "" -f dsa -m PEM
+ssh-keygen -t ecdsa -C "ECDSA test" -N "" -f ecdsa -m PEM
+ssh-keygen -t ed25519 -C "ED25519 test key" -N "" -f ed25519
+ssh-keygen -w "$SK_DUMMY" -t ecdsa-sk -C "ECDSA-SK test key" \
+    -N "" -f ecdsa_sk
+ssh-keygen -w "$SK_DUMMY" -t ed25519-sk -C "ED25519-SK test key" \
+    -N "" -f ed25519_sk
+
+ssh-keygen -Y sign -f rsa -n $NAMESPACE - < signed-data > rsa.sig
+ssh-keygen -Y sign -f dsa -n $NAMESPACE - < signed-data > dsa.sig
+ssh-keygen -Y sign -f ecdsa -n $NAMESPACE - < signed-data > ecdsa.sig
+ssh-keygen -Y sign -f ed25519 -n $NAMESPACE - < signed-data > ed25519.sig
+ssh-keygen -w "$SK_DUMMY" \
+	-Y sign -f ecdsa_sk -n $NAMESPACE - < signed-data > ecdsa_sk.sig
+ssh-keygen -w "$SK_DUMMY" \
+	-Y sign -f ed25519_sk -n $NAMESPACE - < signed-data > ed25519_sk.sig
diff --git a/regress/unittests/sshsig/testdata/dsa b/regress/unittests/sshsig/testdata/dsa
new file mode 100644
index 00000000..7c0063ef
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/dsa
@@ -0,0 +1,12 @@
+-----BEGIN DSA PRIVATE KEY-----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+-----END DSA PRIVATE KEY-----
diff --git a/regress/unittests/sshsig/testdata/dsa.pub b/regress/unittests/sshsig/testdata/dsa.pub
new file mode 100644
index 00000000..e77aa7ef
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/dsa.pub
@@ -0,0 +1 @@
+ssh-dss AAAAB3NzaC1kc3MAAACBAJemd1B3PaZBWeT6Vg4XefENP6HpKImZS8EWGcVYG/y0bilM6RsTAa58sTManONOP7duNVq7ssW3fsAWuqzg26bbvYFY2xg0iM6UY+CrteO/fYU3TTEliHUOhGzVwYae+iGWxYRqYYaFMcPVr2Kly08QFX42vG1kyuX6k79lmDy9AAAAFQCiQT94jWEqUrlu+PquFsSwrivDtwAAAIBCV0T4Ei7GW+gbUgWJZ6zHQJT4fYo7RIRlz0BJf+qM5puHQVvvyh9OUR/2BYcV9q3xK9IlAg48xWVvvouKjwAAxPwRpr+pAopiZAt02rgwuGGPHHkosa3onYnIU8TEK/6qcdgcPn2eC0vArKoaOlILws8uS11efxb8Bp0vLUrv4wAAAIBsMHBczhSeUh8w7i20CVg4OlNTmfJRVU2tO6OpMxZ/quitRm3hLKSNu4xRkvHJwi4LhQtv1SXvLI5g [...]
diff --git a/regress/unittests/sshsig/testdata/dsa.sig b/regress/unittests/sshsig/testdata/dsa.sig
new file mode 100644
index 00000000..0b14ad6b
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/dsa.sig
@@ -0,0 +1,13 @@
+-----BEGIN SSH SIGNATURE-----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+-----END SSH SIGNATURE-----
diff --git a/regress/unittests/sshsig/testdata/ecdsa b/regress/unittests/sshsig/testdata/ecdsa
new file mode 100644
index 00000000..55fb440e
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/ecdsa
@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIFg0ZCSEB5LNeLsXYL25g3kqEWsqh52DR+yNOjyQJqyZoAoGCCqGSM49
+AwEHoUQDQgAE3sud88FV0N8FPspZSV7LWqj6uPPLRZiSsenNuEYAteWPyDgrZsWb
+LzXBuUJucepaCNuW/QWgHBRbrjWj3ERm3A==
+-----END EC PRIVATE KEY-----
diff --git a/regress/unittests/sshsig/testdata/ecdsa.pub b/regress/unittests/sshsig/testdata/ecdsa.pub
new file mode 100644
index 00000000..14ec6cf1
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/ecdsa.pub
@@ -0,0 +1 @@
+ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBN7LnfPBVdDfBT7KWUley1qo+rjzy0WYkrHpzbhGALXlj8g4K2bFmy81wblCbnHqWgjblv0FoBwUW641o9xEZtw= ECDSA test
diff --git a/regress/unittests/sshsig/testdata/ecdsa.sig b/regress/unittests/sshsig/testdata/ecdsa.sig
new file mode 100644
index 00000000..79781570
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/ecdsa.sig
@@ -0,0 +1,7 @@
+-----BEGIN SSH SIGNATURE-----
+U1NIU0lHAAAAAQAAAGgAAAATZWNkc2Etc2hhMi1uaXN0cDI1NgAAAAhuaXN0cDI1NgAAAE
+EE3sud88FV0N8FPspZSV7LWqj6uPPLRZiSsenNuEYAteWPyDgrZsWbLzXBuUJucepaCNuW
+/QWgHBRbrjWj3ERm3AAAAAh1bml0dGVzdAAAAAAAAAAGc2hhNTEyAAAAZQAAABNlY2RzYS
+1zaGEyLW5pc3RwMjU2AAAASgAAACEAycVNsTlE+XEZYyYiDxWZlliruf/pPMhEEMR/XLdQ
+a4MAAAAhALQt+5gES7L3uKGptHB6UZQMuZ2WyI0C6FJs4v6AtMIU
+-----END SSH SIGNATURE-----
diff --git a/regress/unittests/sshsig/testdata/ecdsa_sk b/regress/unittests/sshsig/testdata/ecdsa_sk
new file mode 100644
index 00000000..62ae44cb
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/ecdsa_sk
@@ -0,0 +1,13 @@
+-----BEGIN OPENSSH PRIVATE KEY-----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+-----END OPENSSH PRIVATE KEY-----
diff --git a/regress/unittests/sshsig/testdata/ecdsa_sk.pub b/regress/unittests/sshsig/testdata/ecdsa_sk.pub
new file mode 100644
index 00000000..385ebf15
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/ecdsa_sk.pub
@@ -0,0 +1 @@
+sk-ecdsa-sha2-nistp256 at openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBKDVa5jRcT5V7E6ysmwVi7HJWh7p5D+hebLPakQcpnD2ajJZ6G/4WzuhlYWnclWY63JspDp299Rlhq5AT86/g8AAAAAEc3NoOg== ECDSA-SK test key
diff --git a/regress/unittests/sshsig/testdata/ecdsa_sk.sig b/regress/unittests/sshsig/testdata/ecdsa_sk.sig
new file mode 100644
index 00000000..86de3606
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/ecdsa_sk.sig
@@ -0,0 +1,8 @@
+-----BEGIN SSH SIGNATURE-----
+U1NIU0lHAAAAAQAAAH8AAAAic2stZWNkc2Etc2hhMi1uaXN0cDI1NkBvcGVuc3NoLmNvbQ
+AAAAhuaXN0cDI1NgAAAEEEoNVrmNFxPlXsTrKybBWLsclaHunkP6F5ss9qRBymcPZqMlno
+b/hbO6GVhadyVZjrcmykOnb31GWGrkBPzr+DwAAAAARzc2g6AAAACHVuaXR0ZXN0AAAAAA
+AAAAZzaGE1MTIAAAB3AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20A
+AABIAAAAIHohGwyy8iKT3zwd1TYA9V/Ioo7h/3zCJUtyq/Qigt/HAAAAIGzidTwq7D/kFa
+7Xjcp/KkdbIs4MfQpfAW/0OciajlpzARI0Vng=
+-----END SSH SIGNATURE-----
diff --git a/regress/unittests/sshsig/testdata/ed25519 b/regress/unittests/sshsig/testdata/ed25519
new file mode 100644
index 00000000..b44a63d3
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/ed25519
@@ -0,0 +1,7 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
+QyNTUxOQAAACCJYs0iDdw0Fe/FTzY1b78I4H/j+R6mz2AmLtwTjHYwBAAAAJjpGas/6Rmr
+PwAAAAtzc2gtZWQyNTUxOQAAACCJYs0iDdw0Fe/FTzY1b78I4H/j+R6mz2AmLtwTjHYwBA
+AAAEDpSKRA1QKW6kYiQftGRWh+H0fNekzYLG6c3bzseoCpEolizSIN3DQV78VPNjVvvwjg
+f+P5HqbPYCYu3BOMdjAEAAAAEEVEMjU1MTkgdGVzdCBrZXkBAgMEBQ==
+-----END OPENSSH PRIVATE KEY-----
diff --git a/regress/unittests/sshsig/testdata/ed25519.pub b/regress/unittests/sshsig/testdata/ed25519.pub
new file mode 100644
index 00000000..b078e451
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/ed25519.pub
@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIlizSIN3DQV78VPNjVvvwjgf+P5HqbPYCYu3BOMdjAE ED25519 test key
diff --git a/regress/unittests/sshsig/testdata/ed25519.sig b/regress/unittests/sshsig/testdata/ed25519.sig
new file mode 100644
index 00000000..8e8ff2a8
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/ed25519.sig
@@ -0,0 +1,6 @@
+-----BEGIN SSH SIGNATURE-----
+U1NIU0lHAAAAAQAAADMAAAALc3NoLWVkMjU1MTkAAAAgiWLNIg3cNBXvxU82NW+/COB/4/
+keps9gJi7cE4x2MAQAAAAIdW5pdHRlc3QAAAAAAAAABnNoYTUxMgAAAFMAAAALc3NoLWVk
+MjU1MTkAAABAihQsbUzuNEFflk5Tw1+H9aLS7tZQk0RG8KW1DtOmDYYnWe3D3UKiG3fcJa
+DNg4vBWp1j1gLRiBMOF+gwYNegDg==
+-----END SSH SIGNATURE-----
diff --git a/regress/unittests/sshsig/testdata/ed25519_sk b/regress/unittests/sshsig/testdata/ed25519_sk
new file mode 100644
index 00000000..3a434ecb
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/ed25519_sk
@@ -0,0 +1,8 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAASgAAABpzay1zc2
+gtZWQyNTUxOUBvcGVuc3NoLmNvbQAAACCbGg2F0GK7nOm4pQmAyCuGEjnhvs5q0TtjPbdN
+//+yxwAAAARzc2g6AAAAuBw56jAcOeowAAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY2
+9tAAAAIJsaDYXQYruc6bilCYDIK4YSOeG+zmrRO2M9t03//7LHAAAABHNzaDoBAAAAQFXc
+6dCwWewIk1EBofAouGZApW8+s0XekXenxtb78+x0mxoNhdBiu5zpuKUJgMgrhhI54b7Oat
+E7Yz23Tf//sscAAAAAAAAAE0VEMjU1MTktU0sgdGVzdCBrZXkBAgMEBQY=
+-----END OPENSSH PRIVATE KEY-----
diff --git a/regress/unittests/sshsig/testdata/ed25519_sk.pub b/regress/unittests/sshsig/testdata/ed25519_sk.pub
new file mode 100644
index 00000000..71051ec3
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/ed25519_sk.pub
@@ -0,0 +1 @@
+sk-ssh-ed25519 at openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIJsaDYXQYruc6bilCYDIK4YSOeG+zmrRO2M9t03//7LHAAAABHNzaDo= ED25519-SK test key
diff --git a/regress/unittests/sshsig/testdata/ed25519_sk.sig b/regress/unittests/sshsig/testdata/ed25519_sk.sig
new file mode 100644
index 00000000..49b6818d
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/ed25519_sk.sig
@@ -0,0 +1,7 @@
+-----BEGIN SSH SIGNATURE-----
+U1NIU0lHAAAAAQAAAEoAAAAac2stc3NoLWVkMjU1MTlAb3BlbnNzaC5jb20AAAAgmxoNhd
+Biu5zpuKUJgMgrhhI54b7OatE7Yz23Tf//sscAAAAEc3NoOgAAAAh1bml0dGVzdAAAAAAA
+AAAGc2hhNTEyAAAAZwAAABpzay1zc2gtZWQyNTUxOUBvcGVuc3NoLmNvbQAAAEAi+7eTjW
+/+LQ2M+sCD+KFtH1n7VFFJon/SZFsxODyV8cWTlFKj617Ys1Ur5TV6uaEXQhck8rBA2oQI
+HTPANLIPARI0Vng=
+-----END SSH SIGNATURE-----
diff --git a/regress/unittests/sshsig/testdata/namespace b/regress/unittests/sshsig/testdata/namespace
new file mode 100644
index 00000000..1570cd54
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/namespace
@@ -0,0 +1 @@
+unittest
\ No newline at end of file
diff --git a/regress/unittests/sshsig/testdata/rsa b/regress/unittests/sshsig/testdata/rsa
new file mode 100644
index 00000000..228fad79
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/rsa
@@ -0,0 +1,39 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----
diff --git a/regress/unittests/sshsig/testdata/rsa.pub b/regress/unittests/sshsig/testdata/rsa.pub
new file mode 100644
index 00000000..30142ac0
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/rsa.pub
@@ -0,0 +1 @@
+ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABgQDfzqWaNEe0mnKPzsGtL6ywya29z/VI83SBdM+z2NnWFgCr3w9xrf9FhUzgdpK7oI7O1AnZmdkPdN79d4GchTaZ+69ASX4OLCKwZ42CVXJEKLvvzt88UV9zHNl8NrsQHapjxLehpIZkrxCrO4bCYYAiaOVBfPon4cJ394P/nwagJJKKsgQIVYIC3642s4L8SaADOxt9x9ohttXMDjS2WBTeE7YnjaR13PwKKwNO0MpAAEVw5pBnJxJ+fscM/5aBctdcFQj3BUzVOJ/V/70xfTzEiy8K8bOjvIuBttMUtIavlKQD606ti6gDtXx+B7SJ3/emdW0bVSLcju96N4DB/Qdmq0V4ESc7CQgkWZl4y0V45V/7iSLiHWsOoC9Kxw28y0uno5elsABMBMC4RYSQhAGXWueCcR7SIL2JT2K0oxbqongW0hvgAIfUShTXHy+qsV5yDaG+ [...]
diff --git a/regress/unittests/sshsig/testdata/rsa.sig b/regress/unittests/sshsig/testdata/rsa.sig
new file mode 100644
index 00000000..15a032e0
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/rsa.sig
@@ -0,0 +1,19 @@
+-----BEGIN SSH SIGNATURE-----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+-----END SSH SIGNATURE-----
diff --git a/regress/unittests/sshsig/testdata/signed-data b/regress/unittests/sshsig/testdata/signed-data
new file mode 100644
index 00000000..7df4bedd
--- /dev/null
+++ b/regress/unittests/sshsig/testdata/signed-data
@@ -0,0 +1 @@
+This is a test, this is only a test
\ No newline at end of file
diff --git a/regress/unittests/sshsig/tests.c b/regress/unittests/sshsig/tests.c
new file mode 100644
index 00000000..ce59b96a
--- /dev/null
+++ b/regress/unittests/sshsig/tests.c
@@ -0,0 +1,120 @@
+/* 	$OpenBSD: tests.c,v 1.1 2020/06/19 04:32:09 djm Exp $ */
+/*
+ * Regress test for sshbuf.h buffer API
+ *
+ * Placed in the public domain
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <openssl/evp.h>
+#include <openssl/crypto.h>
+
+#include "ssherr.h"
+#include "authfile.h"
+#include "sshkey.h"
+#include "sshbuf.h"
+#include "sshsig.h"
+#include "log.h"
+
+#include "test_helper.h"
+
+static struct sshbuf *
+load_file(const char *name)
+{
+	struct sshbuf *ret = NULL;
+
+	ASSERT_INT_EQ(sshbuf_load_file(test_data_file(name), &ret), 0);
+	ASSERT_PTR_NE(ret, NULL);
+	return ret;
+}
+
+static struct sshkey *
+load_key(const char *name)
+{
+	struct sshkey *ret = NULL;
+	ASSERT_INT_EQ(sshkey_load_public(test_data_file(name), &ret, NULL), 0);
+	ASSERT_PTR_NE(ret, NULL);
+	return ret;
+}
+
+static void
+check_sig(const char *keyname, const char *signame, const struct sshbuf *msg,
+    const char *namespace)
+{
+	struct sshkey *k, *sign_key;
+	struct sshbuf *sig, *rawsig;
+	struct sshkey_sig_details *sig_details;
+
+	k = load_key(keyname);
+	sig = load_file(signame);
+	sign_key = NULL;
+	sig_details = NULL;
+	rawsig = NULL;
+	ASSERT_INT_EQ(sshsig_dearmor(sig, &rawsig), 0);
+	ASSERT_INT_EQ(sshsig_verifyb(rawsig, msg, namespace,
+	    &sign_key, &sig_details), 0);
+	ASSERT_INT_EQ(sshkey_equal(k, sign_key), 1);
+	sshkey_free(k);
+	sshkey_free(sign_key);
+	sshkey_sig_details_free(sig_details);
+	sshbuf_free(sig);
+	sshbuf_free(rawsig);
+}
+
+void
+tests(void)
+{
+	struct sshbuf *msg;
+	char *namespace;
+
+#if 0
+        log_init("test_sshsig", SYSLOG_LEVEL_DEBUG3, SYSLOG_FACILITY_AUTH, 1);
+#endif
+
+	OpenSSL_add_all_algorithms();
+	ERR_load_CRYPTO_strings();
+
+	TEST_START("load data");
+	msg = load_file("namespace");
+	namespace = sshbuf_dup_string(msg);
+	ASSERT_PTR_NE(namespace, NULL);
+	sshbuf_free(msg);
+	msg = load_file("signed-data");
+	TEST_DONE();
+
+	TEST_START("check RSA signature");
+	check_sig("rsa", "rsa.sig", msg, namespace);
+	TEST_DONE();
+
+	TEST_START("check DSA signature");
+	check_sig("dsa", "dsa.sig", msg, namespace);
+	TEST_DONE();
+
+	TEST_START("check ECDSA signature");
+	check_sig("ecdsa", "ecdsa.sig", msg, namespace);
+	TEST_DONE();
+
+	TEST_START("check ED25519 signature");
+	check_sig("ed25519", "ed25519.sig", msg, namespace);
+	TEST_DONE();
+
+	TEST_START("check ECDSA-SK signature");
+	check_sig("ecdsa_sk", "ecdsa_sk.sig", msg, namespace);
+	TEST_DONE();
+
+	TEST_START("check ED25519-SK signature");
+	check_sig("ed25519_sk", "ed25519_sk.sig", msg, namespace);
+	TEST_DONE();
+
+	sshbuf_free(msg);
+	free(namespace);
+}

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