search for: rfc4716

...9;m implementing SSH agent functionality in a program of mine, with the ability to add/remove keys files as saved by OpenSSH. So I'm trying to figure out which formats OpenSSH uses natively for the different types of keys. The only specification related to SSH key file formats I've found is RFC4716 (SSH Public Key File Format). Analysis of ssh-keygen output with varying key types shows the following four formats for which I haven't found any specification: * Something similar to RFC4716 and RFC1421, but not quite the same. Used by OpenSSH for version 2 DSA and RSA private keys. *...

...ty: P5 Component: ssh-keygen Assignee: unassigned-bugs at mindrot.org Reporter: 4.l.e.x.1.1.s+mindrotopenbsd at gmail.com Hello, As you probably know, the comment header: - is not exported when "ssh-keygen -e" is used to export a public key into an PEM|PKCS8|RFC4716 file format (a new key comment is created) - is not handled when "ssh-keygen -i" is imported from PEM|PKCS8|RFC4716 file to Openssh internal format (the key comment field is missing). Thus, it should be interesting that "ssh-keygen -e" exports the initial comment and "ssh-...

https://bugzilla.mindrot.org/show_bug.cgi?id=1630 Summary: ssh-keygen export of public keys (RFC4716 format) can include too-long lines Product: Portable OpenSSH Version: 5.1p1 Platform: All OS/Version: All Status: NEW Severity: minor Priority: P4 Component: ssh-keygen AssignedTo: unassigne...

https://bugzilla.mindrot.org/show_bug.cgi?id=2570 Bug ID: 2570 Summary: ssh-keygen -p will convert openssh-format keyfiles back to pem, improperly? Product: Portable OpenSSH Version: 7.2p1 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P5 Component:

...mation extraction from private key" + +check_private_key () { +?? ?file="$1" +?? ?format="$2" +?? ?comment="$3" +?? ?secret="$4" +?? ?rounds="$5" + +?? ?# construct expected output in $exp file +?? ?exp=$OBJ/$t-expected +?? ?# default format is RFC4716 +?? ?test -z "$format" && format="RFC4716" +?? ?# Currently PKCS8 is detected as PEM, should be fixed in ssh-keygen +?? ?test "$format" = "PKCS8" && format="PEM" +?? ?cat > $exp << EOF +$comment +Key protection details: +Fil...

...aybe my-ef is a private-key ssh-keygen -yf my-ef.pub Load key "my-ef.pub": error in libcrypto man ssh-keygen -e This option will read a private or public OpenSSH key file and print to stdout a public key in one of the formats pecified by the -m option. The default export format is ?RFC4716?. This op?tion allows exporting OpenSSH keys for use by other programs, in?cluding several commercial SSH implementations. -- You are receiving this mail because: You are watching the assignee of the bug.

Hello, part of a usual OpenSSH installation are quite some files containing key material, like private keys (id_rsa, id_dsa, id_ecdsa) and the corresponding public keys (id_rsa.pub, id_dsa.pub, id_ecdsa.pub). Inspired by a recent question on Stack Overflow [1], I had a look at the OpenSSH documentation to see what format these key files have. The sshd man page [2] contains some paragraphs about

...eygen.1 +++ b/ssh-keygen.1 @@ -334,9 +334,11 @@ The supported key formats are: (RFC 4716/SSH2 public or private key), .Dq PKCS8 (PEM PKCS8 public key) -or .Dq PEM -(PEM public key). +(PEM public key) +or +.Dq SUBJECTINFO +(SubjectPublicKeyInfo public key). The default conversion format is .Dq RFC4716 . .It Fl N Ar new_passphrase diff --git a/ssh-keygen.c b/ssh-keygen.c index 5fcd3a1..072c49a 100644 --- a/ssh-keygen.c +++ b/ssh-keygen.c @@ -137,7 +137,8 @@ int convert_from = 0; enum { FMT_RFC4716, FMT_PKCS8, - FMT_PEM + FMT_PEM, + FMT_SUBJECTINFO } convert_format = FMT_RFC4716; int print...

Hi Le 17/04/2020 ? 05:52, Damien Miller a ?crit?: > On Wed, 15 Apr 2020, Lo?c wrote: > >> Hello, >> >> In one recent change >> (https://anongit.mindrot.org/openssh.git/commit/?id=2b13d3934d5803703c04803ca3a93078ecb5b715), >> I noticed a regression. >> >> If ssh-keygen is given a private file without passphrase and without the >> corresponding

Hi, Markus has just committed a few changes that add support for the Ed25519 signature algorithm[1] as a new private key type. This algorithm has a few benefits: it is fast (comparable to ECDSA and RSA), offers 256-bit security and doesn't require random numbers to generate a signature. This last property means it completely avoids (EC-)DSA's horrible, private-key leaking problem when fed

...ig Hostname options. While this sounds useless, it is actually handy for working with unqualified hostnames: Host *.* Hostname %h Host * Hostname %h.example.org * Allow ssh-keygen(1) to import (-i) and export (-e) of PEM and PKCS#8 keys in addition to RFC4716 (SSH.COM) encodings via a new -m option (bz#1749) * sshd(8) will now queue debug messages for bad ownership or permissions on the user's keyfiles encountered during authentication and will send them after authentication has successfully completed. These messages may be viewed in...

...y to dump the contents of a binary key revocation list via "ssh-keygen -lQf /path" bz#3132 Bugfixes -------- * ssh(1): fix IdentitiesOnly=yes to also apply to keys loaded from a PKCS11Provider; bz#3141 * ssh-keygen(1): avoid NULL dereference when trying to convert an invalid RFC4716 private key. * scp(1): when performing remote-to-remote copies using "scp -3", start the second ssh(1) channel with BatchMode=yes enabled to avoid confusing and non-deterministic ordering of prompts. * ssh(1), ssh-keygen(1): when signing a challenge using a FIDO token, perfor...

...n ssh_config Hostname options. While this sounds useless, it is actually handy for working with unqualified hostnames: Host *.* Hostname %h Host * Hostname %h.example.org * Allow ssh-keygen(1) to import (-i) and export (-e) of PEM and PKCS#8 keys in addition to RFC4716 (SSH.COM) encodings via a new -m option (bz#1749) * sshd(8) will now queue debug messages for bad ownership or permissions on the user's keyfiles encountered during authentication. These messages will be sent after the user has successfully authenticated. These messages may be vie...

...* Do not prompt for a passphrase if we fail to open a keyfile, and log the reason why the open failed to debug. bz#1693 * Document that the PubkeyAuthentication directive is allowed in a sshd_config(5) Match block. bz#1577 * When converting keys, truncate key comments at 72 chars as per RFC4716. bz#1630 * Do not allow logins if /etc/nologin exists but is not readable by the user logging in. * Output a debug log if sshd(8) can't open an existing authorized_keys. bz#1694 * Quell tc[gs]etattr warnings when forcing a tty (ssh -tt), since we usually don't actually have a tt...

I am trying to understand the details of the deprecation notice. Because I am getting people asking me questions. And I don't know the answer. Therefore I am pushing the boulder uphill and asking here. :-) Damien Miller wrote: > Future deprecation notice > ========================= > > It is now possible[1] to perform chosen-prefix attacks against the > SHA-1 algorithm for

...ig Hostname options. While this sounds useless, it is actually handy for working with unqualified hostnames: Host *.* Hostname %h Host * Hostname %h.example.org * Allow ssh-keygen(1) to import (-i) and export (-e) of PEM and PKCS#8 keys in addition to RFC4716 (SSH.COM) encodings via a new -m option (bz#1749) * sshd(8) will now queue debug messages for bad ownership or permissions on the user's keyfiles encountered during authentication and will send them after authentication has successfully completed. These messages may be viewed in...

...* Do not prompt for a passphrase if we fail to open a keyfile, and log the reason why the open failed to debug. bz#1693 * Document that the PubkeyAuthentication directive is allowed in a sshd_config(5) Match block. bz#1577 * When converting keys, truncate key comments at 72 chars as per RFC4716. bz#1630 * Do not allow logins if /etc/nologin exists but is not readable by the user logging in. * Output a debug log if sshd(8) can't open an existing authorized_keys. bz#1694 * Quell tc[gs]etattr warnings when forcing a tty (ssh -tt), since we usually don't actually have a tt...

...y to dump the contents of a binary key revocation list via "ssh-keygen -lQf /path" bz#3132 Bugfixes -------- * ssh(1): fix IdentitiesOnly=yes to also apply to keys loaded from a PKCS11Provider; bz#3141 * ssh-keygen(1): avoid NULL dereference when trying to convert an invalid RFC4716 private key. * scp(2): when performing remote-to-remote copies using "scp -3", start the second ssh(1) channel with BatchMode=yes enabled to avoid confusing and non-deterministic ordering of prompts. * ssh(1), ssh-keygen(1): when signing a challenge using a FIDO token, perfor...

...* Do not prompt for a passphrase if we fail to open a keyfile, and log the reason why the open failed to debug. bz#1693 * Document that the PubkeyAuthentication directive is allowed in a sshd_config(5) Match block. bz#1577 * When converting keys, truncate key comments at 72 chars as per RFC4716. bz#1630 * Do not allow logins if /etc/nologin exists but is not readable by the user logging in. * Output a debug log if sshd(8) can't open an existing authorized_keys. bz#1694 * Quell tc[gs]etattr warnings when forcing a tty (ssh -tt), since we usually don't actually have a tt...

https://bugzilla.mindrot.org/show_bug.cgi?id=1626 Summary: Bugs intended to be fixed in 5.4 Product: Portable OpenSSH Version: -current Platform: Other OS/Version: Mac OS X Status: NEW Severity: normal Priority: P2 Component: Miscellaneous AssignedTo: unassigned-bugs at mindrot.org