# \#openssl **URL:** https://erlangforums.com/tag/openssl/633.md [Latest](https://erlangforums.com/latest.md) · [Categories](https://erlangforums.com/categories.md) · [Tags](https://erlangforums.com/tags.md) --- ## [Cross Compiling Erlang for iOS](https://erlangforums.com/t/cross-compiling-erlang-for-ios/3173)
**Author:** [@qhwa](https://erlangforums.com/u/qhwa)\ **Replies:** 4\ **Last updated:** [June 2, 2025, 11:55am UTC](https://erlangforums.com/t/cross-compiling-erlang-for-ios/3173 "2025-06-02T11:55:25Z")
Hi community! I want to compile and run Erlang on iOS, following this guide in the repository: Right now, I’m stuck with statically linking OpenSSL. The latest version of OpenSSL, 3.3.0, is cloned from Github. I used … --- ## [Building otp27.2.1 with OpenSSL fails with "neither static nor dynamic crypto library found"](https://erlangforums.com/t/building-otp27-2-1-with-openssl-fails-with-neither-static-nor-dynamic-crypto-library-found/4430)
**Author:** [@bmanilov\_varonis](https://erlangforums.com/u/bmanilov_varonis)\ **Replies:** 4\ **Last updated:** [April 23, 2025, 7:50am UTC](https://erlangforums.com/t/building-otp27-2-1-with-openssl-fails-with-neither-static-nor-dynamic-crypto-library-found/4430 "2025-04-23T07:50:04Z")
Hi everyone! I’m trying to build the Erlang following the official instruction from here: https://www.erlang.org/doc/system/install-win32.html on WSL Ubuntu/Ubuntu24.04 As recommended , i downloaded and installed OpenS… --- ## [Any recommended binding to libsodium?](https://erlangforums.com/t/any-recommended-binding-to-libsodium/4407)
**Author:** [@cevado](https://erlangforums.com/u/cevado)\ **Replies:** 0\ **Last updated:** [January 21, 2025, 9:25pm UTC](https://erlangforums.com/t/any-recommended-binding-to-libsodium/4407 "2025-01-21T21:25:47Z")
on libsodium docs I found links to erlang-libsodium and enacl but both seems to be unmantained for 2~3 years. anyone using one of those libraries? any issues with they being unmaintained? do they work with recent versi… --- ## [RSA signing with keys in PEM format](https://erlangforums.com/t/rsa-signing-with-keys-in-pem-format/3970)
**Author:** [@KayEss](https://erlangforums.com/u/KayEss)\ **Replies:** 1\ **Last updated:** [September 3, 2024, 5:36am UTC](https://erlangforums.com/t/rsa-signing-with-keys-in-pem-format/3970 "2024-09-03T05:36:31Z")
I need to be able to sign (and then verify) using RSA with SHA256. There’s a blog post here https://blog.differentpla.net/blog/2023/02/08/rsa-signing-erlang/ that seems to describe what’s needed, but using public\_key:pem… --- ## [Crypto (OpenSSL 3.0) module issue when building Erlang 26.1.2 on Ubuntu 22.04 LTS using KERL](https://erlangforums.com/t/crypto-openssl-3-0-module-issue-when-building-erlang-26-1-2-on-ubuntu-22-04-lts-using-kerl/3024)
**Author:** [@zabrane](https://erlangforums.com/u/zabrane)\ **Replies:** 2\ **Last updated:** [November 14, 2023, 8:25am UTC](https://erlangforums.com/t/crypto-openssl-3-0-module-issue-when-building-erlang-26-1-2-on-ubuntu-22-04-lts-using-kerl/3024 "2023-11-14T08:25:35Z")
Hi guys, I’m trying to build Erlang 26.1.2 on Ubuntu 22.04 LTS which only provides OpenSSL 3.0 (OpenSSL 1.x was deprecated): \[...\] Checking out Erlang/OTP git repository from https://github.com/erlang/otp.git... Buildi… --- ## [Openssl 3 support for "provider"? (deprecated "engine" replacement)](https://erlangforums.com/t/openssl-3-support-for-provider-deprecated-engine-replacement/2954)
**Author:** [@Andrew](https://erlangforums.com/u/Andrew)\ **Replies:** 6\ **Last updated:** [November 4, 2023, 6:45pm UTC](https://erlangforums.com/t/openssl-3-support-for-provider-deprecated-engine-replacement/2954 "2023-11-04T18:45:43Z")
Greetings, Erlang folks, hope this message finds you well! I’m hoping to utilize an HSM (hardware security module) for private key storage and am curious whether openssl 3’s “provider” will be supported (to replace the … --- ## [OCSP and OCSP stapling support](https://erlangforums.com/t/ocsp-and-ocsp-stapling-support/2786)
**Author:** [@juise](https://erlangforums.com/u/juise)\ **Replies:** 3\ **Last updated:** [August 3, 2023, 9:23am UTC](https://erlangforums.com/t/ocsp-and-ocsp-stapling-support/2786 "2023-08-03T09:23:35Z")
Hello! Does Erlang now support OCSP and OCSP stapling? I stumble upon the blog post about implementing it in Erlang and using it in emqx EMQX Supports OCSP stapling - YouTube. Also, there is undocumented code in ssl and… --- ## [How to extract TLS 1.3 pre-master secret?](https://erlangforums.com/t/how-to-extract-tls-1-3-pre-master-secret/2721)
**Author:** [@telandor](https://erlangforums.com/u/telandor)\ **Replies:** 2\ **Last updated:** [July 18, 2023, 10:34pm UTC](https://erlangforums.com/t/how-to-extract-tls-1-3-pre-master-secret/2721 "2023-07-18T22:34:16Z")
I use RabbitMQ with Erlang/OTP 25.0 under Windows 10. I try to decipher TLS 1.3 traffic between RabbitMQ and one of its clients. For this, I need the TLS output written when the environment variable SSLKEYLOGFILE is se…