DKIM: fix $dkim_key_length in verify

15 files changed, 43 insertions, 28 deletions

diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index 3fb7ed8a9..99ad7d1a5 100644
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -172,6 +172,10 @@ JH/37 Bug 2552: Fix the check on spool space during reception to use the SIZE
       ignored, and only the check_spool_space option value for the required
       leeway checked.
 
+JH/38 Fix $dkim_key_length.  This should, after a DKIM verification, present
+      the size of the signing public-key.  Previously it was instead giving
+      the size of the signature hash.
+
 
 Exim version 4.93
 -----------------
diff --git a/src/src/arc.c b/src/src/arc.c
index b453e171c..578c95c89 100644
--- a/src/src/arc.c
+++ b/src/src/arc.c
@@ -735,7 +735,7 @@ arc_get_verify_hhash(ctx, ams, &hhash);
 
 /* Setup the interface to the signing library */
 
-if ((errstr = exim_dkim_verify_init(&p->key, KEYFMT_DER, &vctx)))
+if ((errstr = exim_dkim_verify_init(&p->key, KEYFMT_DER, &vctx, NULL)))
   {
   DEBUG(D_acl) debug_printf("ARC verify init: %s\n", errstr);
   as->ams_verify_done = arc_state_reason = US"internal sigverify init error";
@@ -964,7 +964,7 @@ if (!(p = arc_line_to_pubkey(hdr_as)))
 /* We know the b-tag blob is of a nul-term string, so safe as a string */
 pdkim_decode_base64(hdr_as->b.data, &sighash);
 
-if ((errstr = exim_dkim_verify_init(&p->key, KEYFMT_DER, &vctx)))
+if ((errstr = exim_dkim_verify_init(&p->key, KEYFMT_DER, &vctx, NULL)))
   {
   DEBUG(D_acl) debug_printf("ARC verify init: %s\n", errstr);
   return US"fail";
diff --git a/src/src/dkim.c b/src/src/dkim.c
index 031372720..9c8458b87 100644
--- a/src/src/dkim.c
+++ b/src/src/dkim.c
@@ -406,7 +406,7 @@ for (pdkim_signature * sig = dkim_signatures; sig; sig = sig->next)
     dkim_cur_sig = sig;
     dkim_signing_domain = US sig->domain;
     dkim_signing_selector = US sig->selector;
-    dkim_key_length = sig->sighash.len * 8;
+    dkim_key_length = sig->keybits;
 
     /* These two return static strings, so we can compare the addr
     later to see if the ACL overwrote them.  Check that when logging */
diff --git a/src/src/pdkim/pdkim.c b/src/src/pdkim/pdkim.c
index 7fcfbc76a..0d2674f50 100644
--- a/src/src/pdkim/pdkim.c
+++ b/src/src/pdkim/pdkim.c
@@ -1430,7 +1430,7 @@ if (sig->keytype == KEYTYPE_ED25519)
 
 if ((*errstr = exim_dkim_verify_init(&p->key,
 	    sig->keytype == KEYTYPE_ED25519 ? KEYFMT_ED25519_BARE : KEYFMT_DER,
-	    vctx)))
+	    vctx, &sig->keybits)))
   {
   DEBUG(D_acl) debug_printf("verify_init: %s\n", *errstr);
   sig->verify_status =      PDKIM_VERIFY_INVALID;
diff --git a/src/src/pdkim/pdkim.h b/src/src/pdkim/pdkim.h
index 5ae0f7f45..0b21df8ab 100644
--- a/src/src/pdkim/pdkim.h
+++ b/src/src/pdkim/pdkim.h
@@ -149,8 +149,9 @@ typedef struct pdkim_signature {
   int version;
 
   /* (a=) The signature algorithm. */
-  int keytype;	/* pdkim_keytypes index */
-  int hashtype;	/* pdkim_hashes index */
+  int		keytype;	/* pdkim_keytypes index */
+  unsigned	keybits;	/* size of the key */
+  int		hashtype;	/* pdkim_hashes index */
 
   /* (c=x/) Header canonicalization method. Either PDKIM_CANON_SIMPLE
      or PDKIM_CANON_RELAXED */
diff --git a/src/src/pdkim/signing.c b/src/src/pdkim/signing.c
index 102e7bf51..b55bd9f5f 100644
--- a/src/src/pdkim/signing.c
+++ b/src/src/pdkim/signing.c
@@ -155,7 +155,8 @@ return NULL;
 Return: NULL for success, or an error string */
 
 const uschar *
-exim_dkim_verify_init(blob * pubkey, keyformat fmt, ev_ctx * verify_ctx)
+exim_dkim_verify_init(blob * pubkey, keyformat fmt, ev_ctx * verify_ctx,
+  unsigned * bits)
 {
 gnutls_datum_t k;
 int rc;
@@ -182,6 +183,7 @@ switch(fmt)
     ret = US"pubkey format not handled";
     break;
   }
+if (!ret && bits) gnutls_pubkey_get_pk_algorithm(verify_ctx->key, bits);
 return ret;
 }
 
@@ -552,7 +554,8 @@ return NULL;
 Return: NULL for success, or an error string */
 
 const uschar *
-exim_dkim_verify_init(blob * pubkey, keyformat fmt, ev_ctx * verify_ctx)
+exim_dkim_verify_init(blob * pubkey, keyformat fmt, ev_ctx * verify_ctx,
+  unsigned * bits)
 {
 /*
 in code sequence per b81207d2bfa92 rsa_parse_public_key() and asn1_get_mpi()
@@ -560,6 +563,7 @@ in code sequence per b81207d2bfa92 rsa_parse_public_key() and asn1_get_mpi()
 uschar tag_class;
 int taglen;
 long alen;
+unsigned nbits;
 int rc;
 uschar * errstr;
 gcry_error_t gerr;
@@ -608,10 +612,10 @@ if ((rc = as_tag(pubkey, ASN1_CLASS_STRUCTURED, ASN1_TAG_SEQUENCE, NULL))
 
 /* read two integers */
 DEBUG(D_acl) stage = US"MPI";
-if (  (errstr = as_mpi(pubkey, &verify_ctx->n))
-   || (errstr = as_mpi(pubkey, &verify_ctx->e))
-   )
-  return errstr;
+nbits = pubkey->len;
+if ((errstr = as_mpi(pubkey, &verify_ctx->n))) return errstr;
+nbits = (nbits - pubkey->len) * 8;
+if ((errstr = as_mpi(pubkey, &verify_ctx->e))) return errstr;
 
 #ifdef extreme_debug
 DEBUG(D_acl) debug_printf_indent("rsa_verify_init:\n");
@@ -624,6 +628,7 @@ DEBUG(D_acl) debug_printf_indent("rsa_verify_init:\n");
 	}
 
 #endif
+if (bits) *bits = nbits;
 return NULL;
 
 asn_err:
@@ -794,7 +799,8 @@ return US ERR_error_string(ERR_get_error(), NULL);
 Return: NULL for success, or an error string */
 
 const uschar *
-exim_dkim_verify_init(blob * pubkey, keyformat fmt, ev_ctx * verify_ctx)
+exim_dkim_verify_init(blob * pubkey, keyformat fmt, ev_ctx * verify_ctx,
+  unsigned * bits)
 {
 const uschar * s = pubkey->data;
 uschar * ret = NULL;
@@ -818,6 +824,7 @@ switch(fmt)
     break;
   }
 
+if (!ret && bits) *bits = EVP_PKEY_bits(verify_ctx->key);
 return ret;
 }
 
diff --git a/src/src/pdkim/signing.h b/src/src/pdkim/signing.h
index 96a0720fd..6ecde7537 100644
--- a/src/src/pdkim/signing.h
+++ b/src/src/pdkim/signing.h
@@ -90,7 +90,7 @@ extern gstring * exim_dkim_data_append(gstring *, uschar *);
 
 extern const uschar * exim_dkim_signing_init(const uschar *, es_ctx *);
 extern const uschar * exim_dkim_sign(es_ctx *, hashmethod, blob *, blob *);
-extern const uschar * exim_dkim_verify_init(blob *, keyformat, ev_ctx *);
+extern const uschar * exim_dkim_verify_init(blob *, keyformat, ev_ctx *, unsigned *);
 extern const uschar * exim_dkim_verify(ev_ctx *, hashmethod, blob *, blob *);
 
 #endif	/*DISABLE_DKIM*/
diff --git a/test/log/4501 b/test/log/4501
index 77354cacb..2ab144416 100644
--- a/test/log/4501
+++ b/test/log/4501
@@ -5,7 +5,7 @@
 1999-03-02 09:44:33 10HmaX-0005vi-00 DKIM: d=test.ex s=sel c=simple/simple a=rsa-sha1 b=1024 [verification succeeded]
 1999-03-02 09:44:33 10HmaX-0005vi-00 Authentication-Results: myhost.test.ex;\n	dkim=pass header.d=test.ex header.s=sel header.a=rsa-sha1
 1999-03-02 09:44:33 10HmaX-0005vi-00 <= pass@bloggs.com H=(xxx) [127.0.0.1] P=smtp S=sss DKIM=test.ex id=qwerty1234@disco-zombie.net
-1999-03-02 09:44:33 10HmaY-0005vi-00 signer: test.ex bits: 1024
+1999-03-02 09:44:33 10HmaY-0005vi-00 signer: test.ex bits: 0
 1999-03-02 09:44:33 10HmaY-0005vi-00 DKIM: d=test.ex s=sel c=simple/simple a=rsa-sha1 b=1024 [verification failed - body hash mismatch (body probably modified in transit)]
 1999-03-02 09:44:33 10HmaY-0005vi-00 Authentication-Results: myhost.test.ex;\n	dkim=fail (body hash mismatch; body probably modified in transit)\n		 header.d=test.ex header.s=sel header.a=rsa-sha1
 1999-03-02 09:44:33 10HmaY-0005vi-00 <= fail@bloggs.com H=(xxx) [127.0.0.1] P=smtp S=sss id=qwerty1234@disco-zombie.net
diff --git a/test/log/4502 b/test/log/4502
index 3dd9f2b6e..ed74d275c 100644
--- a/test/log/4502
+++ b/test/log/4502
@@ -14,7 +14,7 @@
 1999-03-02 09:44:33 10HmaZ-0005vi-00 Authentication-Results: myhost.test.ex;\n	dkim=pass header.d=test.ex header.s=sel header.a=rsa-sha1
 1999-03-02 09:44:33 10HmaZ-0005vi-00 <= CALLER@bloggs.com H=(xxx) [127.0.0.1] P=smtp S=sss DKIM=test.ex
 1999-03-02 09:44:33 10HmbA-0005vi-00 DKIM: d=test.ex s=sel_bad [failed key import]
-1999-03-02 09:44:33 10HmbA-0005vi-00 signer: test.ex bits: 1024
+1999-03-02 09:44:33 10HmbA-0005vi-00 signer: test.ex bits: 0
 1999-03-02 09:44:33 10HmbA-0005vi-00 DKIM: d=test.ex s=sel_bad c=relaxed/relaxed a=rsa-sha1 b=1024 [invalid - syntax error in public key record]
 1999-03-02 09:44:33 10HmbA-0005vi-00 Authentication-Results: myhost.test.ex;\n	dkim=neutral (public key record import problem)\n		 header.d=test.ex header.s=sel_bad header.a=rsa-sha1
 1999-03-02 09:44:33 10HmbA-0005vi-00 <= CALLER@bloggs.com H=(xxx) [127.0.0.1] P=smtp S=sss id=564CFC9B.1040905@yahoo.com
diff --git a/test/log/4506 b/test/log/4506
index 2046780e9..9aa3604c0 100644
--- a/test/log/4506
+++ b/test/log/4506
@@ -5,11 +5,11 @@
 1999-03-02 09:44:33 10HmaY-0005vi-00 DKIM: d=test.ex s=sel c=simple/simple a=rsa-sha1 b=0 [invalid - signature tag missing or invalid]
 1999-03-02 09:44:33 10HmaY-0005vi-00 Authentication-Results: myhost.test.ex;\n	dkim=neutral (signature tag missing or invalid)\n		 header.d=test.ex header.s=sel header.a=rsa-sha1
 1999-03-02 09:44:33 10HmaY-0005vi-00 <= CALLER@bloggs.com H=(xxx) [127.0.0.1] P=smtp S=sss id=qwerty1234@disco-zombie.net
-1999-03-02 09:44:33 10HmaZ-0005vi-00 signer: test.ex bits: 1024
+1999-03-02 09:44:33 10HmaZ-0005vi-00 signer: test.ex bits: 0
 1999-03-02 09:44:33 10HmaZ-0005vi-00 DKIM: d=test.ex s=sel c=simple/simple a=rsa-sha1 b=1024 [verification failed - body hash mismatch (body probably modified in transit)]
 1999-03-02 09:44:33 10HmaZ-0005vi-00 Authentication-Results: myhost.test.ex;\n	dkim=fail (body hash mismatch; body probably modified in transit)\n		 header.d=test.ex header.s=sel header.a=rsa-sha1
 1999-03-02 09:44:33 10HmaZ-0005vi-00 <= CALLER@bloggs.com H=(xxx) [127.0.0.1] P=smtp S=sss id=qwerty1234@disco-zombie.net
-1999-03-02 09:44:33 10HmbA-0005vi-00 signer: test.ex bits: 1024
+1999-03-02 09:44:33 10HmbA-0005vi-00 signer: test.ex bits: 0
 1999-03-02 09:44:33 10HmbA-0005vi-00 DKIM: d=test.ex s=sel c=simple/simple a=rsa-sha1 b=1024 [verification failed - body hash mismatch (body probably modified in transit)]
 1999-03-02 09:44:33 10HmbA-0005vi-00 Authentication-Results: myhost.test.ex;\n	dkim=fail (body hash mismatch; body probably modified in transit)\n		 header.d=test.ex header.s=sel header.a=rsa-sha1
 1999-03-02 09:44:33 10HmbA-0005vi-00 <= CALLER@bloggs.com H=(xxx) [127.0.0.1] P=smtp S=sss id=qwerty1234@disco-zombie.net
diff --git a/test/log/4520 b/test/log/4520
index 610738e21..4ed718225 100644
--- a/test/log/4520
+++ b/test/log/4520
@@ -80,7 +80,7 @@
 1999-03-02 09:44:33 10HmbJ-0005vi-00 Completed
 1999-03-02 09:44:33 rcpt acl: macro: From:Sender:Reply-To:Subject:Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive
 1999-03-02 09:44:33 10HmbL-0005vi-00 DKIM: d=test.ex s=sel_bad [failed key import]
-1999-03-02 09:44:33 10HmbL-0005vi-00 dkim_acl: signer: test.ex bits: 1024 h=From
+1999-03-02 09:44:33 10HmbL-0005vi-00 dkim_acl: signer: test.ex bits: 0 h=From
 1999-03-02 09:44:33 10HmbL-0005vi-00 DKIM: d=test.ex s=sel_bad c=relaxed/relaxed a=rsa-sha256 b=1024 [invalid - syntax error in public key record]
 1999-03-02 09:44:33 10HmbL-0005vi-00 data acl: dkim status invalid
 1999-03-02 09:44:33 10HmbL-0005vi-00 <= CALLER@myhost.test.ex H=the.local.host.name (myhost.test.ex) [ip4.ip4.ip4.ip4] P=esmtp S=sss id=E10HmbK-0005vi-00@myhost.test.ex for d@test.ex
diff --git a/test/log/4540 b/test/log/4540
index d5642e4e2..9724325ee 100644
--- a/test/log/4540
+++ b/test/log/4540
@@ -1,17 +1,17 @@
 
 ******** SERVER ********
 1999-03-02 09:44:33 exim x.yz daemon started: pid=pppp, no queue runs, listening for SMTP on port PORT_D
-1999-03-02 09:44:33 10HmaX-0005vi-00 signer: test.ex bits: 512
+1999-03-02 09:44:33 10HmaX-0005vi-00 signer: test.ex bits: 253
 1999-03-02 09:44:33 10HmaX-0005vi-00 DKIM: d=test.ex s=sed c=relaxed/relaxed a=ed25519-sha256 b=512 [verification succeeded]
 1999-03-02 09:44:33 10HmaX-0005vi-00 Authentication-Results: myhost.test.ex;\n	dkim=pass header.d=test.ex header.s=sed header.a=ed25519-sha256
 1999-03-02 09:44:33 10HmaX-0005vi-00 <= CALLER@bloggs.com H=(xxx) [127.0.0.1] P=smtp S=sss DKIM=test.ex id=E10HmaY-0005vi-00@myhost.test.ex
-1999-03-02 09:44:33 10HmaZ-0005vi-00 signer: test.ex bits: 512
+1999-03-02 09:44:33 10HmaZ-0005vi-00 signer: test.ex bits: 253
 1999-03-02 09:44:33 10HmaZ-0005vi-00 DKIM: d=test.ex s=sedw c=relaxed/relaxed a=ed25519-sha256 b=512 [verification succeeded]
 1999-03-02 09:44:33 10HmaZ-0005vi-00 Authentication-Results: myhost.test.ex;\n	dkim=pass header.d=test.ex header.s=sedw header.a=ed25519-sha256
 1999-03-02 09:44:33 10HmaZ-0005vi-00 <= CALLER@bloggs.com H=(xxx) [127.0.0.1] P=smtp S=sss DKIM=test.ex id=E10HmaY-0005vi-00@myhost.test.ex
-1999-03-02 09:44:33 10HmbA-0005vi-00 signer: kitterman.org bits: 512
+1999-03-02 09:44:33 10HmbA-0005vi-00 signer: kitterman.org bits: 253
 1999-03-02 09:44:33 10HmbA-0005vi-00 DKIM: d=kitterman.org s=ed25519 c=relaxed/simple a=ed25519-sha256 b=512 i=@kitterman.org t=1517847601 [verification succeeded]
-1999-03-02 09:44:33 10HmbA-0005vi-00 signer: @kitterman.org bits: 512
+1999-03-02 09:44:33 10HmbA-0005vi-00 signer: @kitterman.org bits: 253
 1999-03-02 09:44:33 10HmbA-0005vi-00 DKIM: d=kitterman.org s=ed25519 c=relaxed/simple a=ed25519-sha256 b=512 i=@kitterman.org t=1517847601 [verification succeeded]
 1999-03-02 09:44:33 10HmbA-0005vi-00 Authentication-Results: myhost.test.ex;\n	dkim=pass header.d=kitterman.org header.i=@kitterman.org header.s=ed25519 header.a=ed25519-sha256
 1999-03-02 09:44:33 10HmbA-0005vi-00 <= CALLER@bloggs.com H=(xxx) [127.0.0.1] P=smtp S=sss DKIM=kitterman.org id=example@example.com
diff --git a/test/log/4541 b/test/log/4541
index b8a5f3347..40d9fd8e3 100644
--- a/test/log/4541
+++ b/test/log/4541
@@ -8,7 +8,7 @@
 ******** SERVER ********
 1999-03-02 09:44:33 exim x.yz daemon started: pid=pppp, no queue runs, listening for SMTP on port PORT_D
 1999-03-02 09:44:33 rcpt acl: macro: From:Sender:Reply-To:Subject:Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive
-1999-03-02 09:44:33 10HmaY-0005vi-00 dkim_acl: signer: test.ex bits: 512 h=From
+1999-03-02 09:44:33 10HmaY-0005vi-00 dkim_acl: signer: test.ex bits: 253 h=From
 1999-03-02 09:44:33 10HmaY-0005vi-00 DKIM: d=test.ex s=sed c=relaxed/relaxed a=ed25519-sha256 b=512 [verification succeeded]
 1999-03-02 09:44:33 10HmaY-0005vi-00 dkim_acl: signer: test.ex bits: 1024 h=From
 1999-03-02 09:44:33 10HmaY-0005vi-00 DKIM: d=test.ex s=sel c=relaxed/relaxed a=rsa-sha256 b=1024 [verification succeeded]
@@ -18,9 +18,9 @@
 1999-03-02 09:44:33 10HmaY-0005vi-00 Completed
 1999-03-02 09:44:33 exim x.yz daemon started: pid=pppp, no queue runs, listening for SMTP on port PORT_D
 1999-03-02 09:44:33 rcpt acl: macro: From:Sender:Reply-To:Subject:Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive
-1999-03-02 09:44:33 10HmbA-0005vi-00 dkim_acl: signer: test.ex bits: 512 h=From
+1999-03-02 09:44:33 10HmbA-0005vi-00 dkim_acl: signer: test.ex bits: 253 h=From
 1999-03-02 09:44:33 10HmbA-0005vi-00 DKIM: d=test.ex s=sed c=relaxed/relaxed a=ed25519-sha256 b=512 [verification succeeded]
-1999-03-02 09:44:33 10HmbA-0005vi-00 dkim_acl: signer: test.ex bits: 1024 h=From
+1999-03-02 09:44:33 10HmbA-0005vi-00 dkim_acl: signer: test.ex bits: 0 h=From
 1999-03-02 09:44:33 10HmbA-0005vi-00 DKIM: d=test.ex s=sel c=relaxed/relaxed a=rsa-sha256 b=1024 [not verified]
 1999-03-02 09:44:33 10HmbA-0005vi-00 data acl: dkim status pass:none
 1999-03-02 09:44:33 10HmbA-0005vi-00 <= CALLER@myhost.test.ex H=the.local.host.name (myhost.test.ex) [ip4.ip4.ip4.ip4] P=esmtp S=sss id=E10HmaZ-0005vi-00@myhost.test.ex for b@test.ex
diff --git a/test/log/4545 b/test/log/4545
index ed6890091..000c10916 100644
--- a/test/log/4545
+++ b/test/log/4545
@@ -8,14 +8,14 @@
 ******** SERVER ********
 1999-03-02 09:44:33 exim x.yz daemon started: pid=pppp, no queue runs, listening for SMTP on port PORT_D
 1999-03-02 09:44:33 rcpt acl: macro: From:Sender:Reply-To:Subject:Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive
-1999-03-02 09:44:33 10HmaY-0005vi-00 dkim_acl: signer: test.ex bits: 512 h=From:To:Subject
+1999-03-02 09:44:33 10HmaY-0005vi-00 dkim_acl: signer: test.ex bits: 253 h=From:To:Subject
 1999-03-02 09:44:33 10HmaY-0005vi-00 DKIM: d=test.ex s=sed c=relaxed/relaxed a=ed25519-sha256 b=512 [verification succeeded]
 1999-03-02 09:44:33 10HmaY-0005vi-00 data acl: dkim status pass
 1999-03-02 09:44:33 10HmaY-0005vi-00 <= CALLER@myhost.test.ex H=the.local.host.name (myhost.test.ex) [ip4.ip4.ip4.ip4] P=esmtp S=sss id=E10HmaX-0005vi-00@myhost.test.ex for a@test.ex
 1999-03-02 09:44:33 10HmaY-0005vi-00 => a <a@test.ex> R=server_store T=file
 1999-03-02 09:44:33 10HmaY-0005vi-00 Completed
 1999-03-02 09:44:33 rcpt acl: macro: From:Sender:Reply-To:Subject:Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive
-1999-03-02 09:44:33 10HmbA-0005vi-00 dkim_acl: signer: test.ex bits: 512 h=From
+1999-03-02 09:44:33 10HmbA-0005vi-00 dkim_acl: signer: test.ex bits: 253 h=From
 1999-03-02 09:44:33 10HmbA-0005vi-00 DKIM: d=test.ex s=sed c=relaxed/relaxed a=ed25519-sha256 b=512 [verification succeeded]
 1999-03-02 09:44:33 10HmbA-0005vi-00 dkim_acl: signer: test.ex bits: 1024 h=From
 1999-03-02 09:44:33 10HmbA-0005vi-00 DKIM: d=test.ex s=sel c=relaxed/relaxed a=rsa-sha256 b=1024 [verification succeeded]
diff --git a/test/runtest b/test/runtest
index f90249fb8..c7ba26ac9 100755
--- a/test/runtest
+++ b/test/runtest
@@ -1424,6 +1424,9 @@ RESET_AFTER_EXTRA_LINE_READ:
       my ($prefix, $t_diff) = ($1, $3 - $2);
       s/DKIM: d=.* t=[0-9]* x=[0-9]* /${prefix} t=T x=T+${t_diff} /;
       }
+    # GnuTLS reports a different keysize vs. OpenSSL, for ed25519 keys
+    s/signer: [^ ]* bits:\K 256/ 253/;
+    s/public key too short:\K 256 bits/ 253 bits/;
 
     # port numbers
     s/(?:\[[^\]]*\]:|port )\K$parm_port_d/PORT_D/;