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Blog on OpenSSL Library
Feb 4
Custom method functions removed from the OpenSSL Library
Following on from the [removal of ENGINE code](https://openssl- library.org/post/2025-12-18-remove-
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Custom method functions removed from the OpenSSL Library
Following on from the [removal of ENGINE code](https://openssl- library.org/post/2025-12-18-remove-
Feb 4
SIMON BABY
, …
Viktor Dukhovni
8
Feb 3
openssl x509 certificate question
Thank you Viktor On Tuesday, February 3, 2026, Viktor Dukhovni <openss...@dukhovni.org>
unread,
openssl x509 certificate question
Thank you Viktor On Tuesday, February 3, 2026, Viktor Dukhovni <openss...@dukhovni.org>
Feb 3
Ken Goldman
, …
Viktor Dukhovni
31
Jan 29
How to test a build of the FIPS provider
On Wed, Jan 28, 2026 at 06:26:32PM -0500, Ken Goldman wrote: > For the record, here are working
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How to test a build of the FIPS provider
On Wed, Jan 28, 2026 at 06:26:32PM -0500, Ken Goldman wrote: > For the record, here are working
Jan 29
Blog on OpenSSL Library
Jan 27
OpenSSL Release Announcement for 3.6.1, 3.5.5, 3.4.4, 3.3.6, 3.0.19, 1.1.1ze and 1.0.2zn
Release Announcement for OpenSSL Library **3.6.1** , **3.5 5** , **3.4.4** , **3.3.6** , **3.0.19** ,
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OpenSSL Release Announcement for 3.6.1, 3.5.5, 3.4.4, 3.3.6, 3.0.19, 1.1.1ze and 1.0.2zn
Release Announcement for OpenSSL Library **3.6.1** , **3.5 5** , **3.4.4** , **3.3.6** , **3.0.19** ,
Jan 27
Tomas Mraz
Jan 27
OpenSSL Security Advisory (corrected - added CVE-2026-22795 and CVE-2026-22796)
OpenSSL Security Advisory [27th January 2026] ============================================= Improper
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OpenSSL Security Advisory (corrected - added CVE-2026-22795 and CVE-2026-22796)
OpenSSL Security Advisory [27th January 2026] ============================================= Improper
Jan 27
Tomas Mraz
Jan 27
OpenSSL Security Advisory
OpenSSL Security Advisory [27th January 2026] ============================================= Improper
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OpenSSL Security Advisory
OpenSSL Security Advisory [27th January 2026] ============================================= Improper
Jan 27
Manish Patidar
,
Viktor Dukhovni
2
Jan 27
OpenSSL config not loading
On Tue, Jan 27, 2026 at 02:29:57PM +0530, Manish Patidar wrote: > We are using OpenSSL 3.5, and
unread,
OpenSSL config not loading
On Tue, Jan 27, 2026 at 02:29:57PM +0530, Manish Patidar wrote: > We are using OpenSSL 3.5, and
Jan 27
Harald Koch
, …
Richard Levitte
5
Jan 22
cms signing error with SHA3-512 & PSS
Hello Richard, Am 22.01.2026 um 08:41 schrieb Richard Levitte <ric...@levitte.org>: On 1/21/26
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cms signing error with SHA3-512 & PSS
Hello Richard, Am 22.01.2026 um 08:41 schrieb Richard Levitte <ric...@levitte.org>: On 1/21/26
Jan 22
Ken Goldman
, …
Tomas Mraz
4
Jan 21
Openssl 3.5 FIPS and SHA-1
Yes, SHA-1 is and should be in the FIPS provider for now. Tomas Mraz, Chief Technology Officer,
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Openssl 3.5 FIPS and SHA-1
Yes, SHA-1 is and should be in the FIPS provider for now. Tomas Mraz, Chief Technology Officer,
Jan 21
Tomas Mraz
Jan 20
New OpenSSL Releases
The OpenSSL project team would like to announce the upcoming release of OpenSSL versions 3.6.1, 3.5.5
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New OpenSSL Releases
The OpenSSL project team would like to announce the upcoming release of OpenSSL versions 3.6.1, 3.5.5
Jan 20
Thomas Anderson
Jan 18
unable to verify a CMS signature without signedattrs
I'm trying to run this command: openssl cms -verify -in cms.pem -inform PEM -CAfile ca.pem ca.pem
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unable to verify a CMS signature without signedattrs
I'm trying to run this command: openssl cms -verify -in cms.pem -inform PEM -CAfile ca.pem ca.pem
Jan 18
Blog on OpenSSL Library
12/19/25
ENGINE code removed from the OpenSSL Library
OpenSSL 4.0, to be released in April 2026, is the first [major release](https://openssl-library.org/
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ENGINE code removed from the OpenSSL Library
OpenSSL 4.0, to be released in April 2026, is the first [major release](https://openssl-library.org/
12/19/25
Blog on OpenSSL Library
12/19/25
Vote now for the Foundation Business Advisory Committee
The voting from the Foundation BAC has been [extended through December 21](https://openssl-library.
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Vote now for the Foundation Business Advisory Committee
The voting from the Foundation BAC has been [extended through December 21](https://openssl-library.
12/19/25
Turritopsis Dohrnii Teo En Ming
12/5/25
ArcServe UDP 10.3 backup software utilizes both Apache HTTP Server (Apache/2.4.65 (Win32)) and OpenSSL 3.6.0
Subject: ArcServe UDP 10.3 backup software utilizes both Apache HTTP Server (Apache/2.4.65 (Win32))
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ArcServe UDP 10.3 backup software utilizes both Apache HTTP Server (Apache/2.4.65 (Win32)) and OpenSSL 3.6.0
Subject: ArcServe UDP 10.3 backup software utilizes both Apache HTTP Server (Apache/2.4.65 (Win32))
12/5/25
Blog on OpenSSL Library
12/3/25
OpenSSL Library is moving to clang-format
The OpenSSL Library would like to modernise and streamline development processes, especially to
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OpenSSL Library is moving to clang-format
The OpenSSL Library would like to modernise and streamline development processes, especially to
12/3/25
Blog on OpenSSL Library
11/25/25
OpenSSL 3.2 End Of Life
OpenSSL 3.2 series has reached its End of Life (EOL). As such it will no longer receive publicly
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OpenSSL 3.2 End Of Life
OpenSSL 3.2 series has reached its End of Life (EOL). As such it will no longer receive publicly
11/25/25
Blog on OpenSSL Library
10/27/25
Contributors to the OpenSSL Library (September 2025)
September has come and gone, so it's past time to recognize new contributors to the OpenSSL
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Contributors to the OpenSSL Library (September 2025)
September has come and gone, so it's past time to recognize new contributors to the OpenSSL
10/27/25
madhu bajpai
2
10/27/25
Facing issue with i2d_CMS_ContentInfo and d2i_CMS_ContentInfo in 3.x.x
Any inputs/suggestions from anyone? On 21 Oct 2025, at 3:57 PM, madhu bajpai <madhu.bajpai@rimus-
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Facing issue with i2d_CMS_ContentInfo and d2i_CMS_ContentInfo in 3.x.x
Any inputs/suggestions from anyone? On 21 Oct 2025, at 3:57 PM, madhu bajpai <madhu.bajpai@rimus-
10/27/25
Blog on OpenSSL Library
10/24/25
The OpenSSL Corporation and the OpenSSL Foundation Celebrate the Success of the Inaugural OpenSSL Conference in Prague
 The [**OpenSSL
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The OpenSSL Corporation and the OpenSSL Foundation Celebrate the Success of the Inaugural OpenSSL Conference in Prague
 The [**OpenSSL
10/24/25
Leon Timmermans
10/24/25
Announcing Crypt::OpenSSL3, a new Perl binding for OpenSSL
Hello all, I am delighted to announce the first release of Crypt::OpenSSL3, a new Perl binding for
unread,
Announcing Crypt::OpenSSL3, a new Perl binding for OpenSSL
Hello all, I am delighted to announce the first release of Crypt::OpenSSL3, a new Perl binding for
10/24/25
Sands, Daniel N.
,
Tomas Mraz
3
10/22/25
In-place decryption error
It would appear that your updated version uses overlapping buffers, doesn't it? For the first
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In-place decryption error
It would appear that your updated version uses overlapping buffers, doesn't it? For the first
10/22/25
Prasad, PCRaghavendra
, …
Marian Beermann
9
10/21/25
OpenSSL 3.3.3 Security Vulnerability
> OpenSSL 3.0.0 through 3.3.2 on the PowerPC architecture is vulnerable to a Minerva attack, Are
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OpenSSL 3.3.3 Security Vulnerability
> OpenSSL 3.0.0 through 3.3.2 on the PowerPC architecture is vulnerable to a Minerva attack, Are
10/21/25
Blog on OpenSSL Library
10/19/25
Foundation Business Advisory Committee election
Believe it or not, it's time to start the election process for the 2026 Foundation Business
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Foundation Business Advisory Committee election
Believe it or not, it's time to start the election process for the 2026 Foundation Business
10/19/25
Blog on OpenSSL Library
10/19/25
Lightship Security and the OpenSSL Corporation Submit OpenSSL 3.5.4 for FIPS 140-3 Validation
 [**Lightship
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Lightship Security and the OpenSSL Corporation Submit OpenSSL 3.5.4 for FIPS 140-3 Validation
 [**Lightship
10/19/25
Michał Trojnara
10/18/25
stunnel 5.76 released
Dear Users, I have released version 5.76 of stunnel. ### Version 5.76, 2025.10.18, urgency: MEDIUM *
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stunnel 5.76 released
Dear Users, I have released version 5.76 of stunnel. ### Version 5.76, 2025.10.18, urgency: MEDIUM *
10/18/25
Mad
,
Matt Caswell
4
10/16/25
Creating a PKCS7 detached signature with providers
Hello, I found the source of the problem and the solution, although it's not very elegant and
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Creating a PKCS7 detached signature with providers
Hello, I found the source of the problem and the solution, although it's not very elegant and
10/16/25
Ladd, Watson
10/8/25
Setting module path in openssl.conf config files
Dear OpenSSL users, I've read the manpage a few times, and I'm very confused about whether or
unread,
Setting module path in openssl.conf config files
Dear OpenSSL users, I've read the manpage a few times, and I'm very confused about whether or
10/8/25
ama...@xtec.com
10/6/25
How to create empty certs-only CMS format p7c file
Hi everybody, I'm trying to create a p7c file for the AIA extension of an issuing CA which issuer
unread,
How to create empty certs-only CMS format p7c file
Hi everybody, I'm trying to create a p7c file for the AIA extension of an issuing CA which issuer
10/6/25
共通基盤ＳＳＬ［業務ＩＤ］ / COMMONSSL，GYOUMU
10/5/25
Build error with OpenSSL 3.5 on Visual Studio 2012 (32-bit)
Hello, I am trying to build OpenSSL 3.5 with Visual Studio 2012 (32-bit), but the build fails due to
unread,
Build error with OpenSSL 3.5 on Visual Studio 2012 (32-bit)
Hello, I am trying to build OpenSSL 3.5 with Visual Studio 2012 (32-bit), but the build fails due to
10/5/25
Sands, Daniel N.
, …
Matt Caswell
7
10/2/25
Transferring hash state
The docs state this: EVP_DecryptInit_ex2(), EVP_DecryptInit_ex(), EVP_DecryptUpdate() and
unread,
Transferring hash state
The docs state this: EVP_DecryptInit_ex2(), EVP_DecryptInit_ex(), EVP_DecryptUpdate() and
10/2/25
