Mbed TLS

Crypto and SSL questions Questions and discussions on cryptography, cryptographic primitives and SSL/TLS. Generic Generic discussion forum for everything related to Mbed TLS, formerly PolarSSL. Feature Requests If you run into a specific feature not present in Mbed TLS and wonder if it could be added, place your request here. Bug Reports / Issues Questions and discussions on possible bugs and issues can be reported here. Please be as thorough as possible with regards to versions, operating systems, reproduction steps and debug information that can help solve the issue. Platform specific questions Questions and discussions on platform specific issues Please be as through as possible with regards to versions, chipsets, operating systems, reproduction steps and debug information that can help solve the issue.

Topic	Replies	Views	Activity
About the Mbed TLS category Mbed TLS	0	1388	May 10, 2018
Session Resumption in TLS 1.2 in an ongoing session (iec-62351-3 / RFC5246) Mbed TLS mbed_tls	1	47	February 6, 2026
TLS Handshake Failure MQTT to AWS Crypto and SSL questions	1	51	January 16, 2026
Thread safety in PSA crypto Mbed TLS mbed_tls	0	32	January 2, 2026
How to disable PSA Crypto in Mbed TLS 3.x and build a minimal classic TLS + X.509 configuration? Mbed TLS mbed_tls	0	99	December 15, 2025
ESP32 mbedTLS PKCS#7 signature usage Mbed TLS mbed_tls	1	650	October 20, 2025
Cannot Create Self-Signed Certificate Using Hardcoded PEM RSA Private Key Mbed TLS mbed_tls , stmicroelectronics	0	34	September 25, 2025
DTLS bug in mbedTLS 3.6.4? Bug Reports / Issues	2	70	September 18, 2025
DTLS 1.2 using MBEDTLS; error during HANDSHAKE Mbed TLS mbed_tls	1	196	September 18, 2025
X509_verify_cert() returned -9984 (-0x2700) Mbed TLS	19	10727	September 13, 2025
Memory problem when restarting MbedTLS Mbed TLS	4	169	July 1, 2025
Not able to integrate Mbedtls library in Ardupilot firmware Mbed TLS mbed_tls , stmicroelectronics	0	55	June 30, 2025
MbedTLS 3.6.1 using TLS 1.3 Mbed TLS mbed_client , stmicroelectronics	0	318	May 27, 2025
Handshake duration - how to speedup? Generic mbed_tls	1	624	May 27, 2025
Problems using MBED with LWIP Mbed TLS	1	80	May 13, 2025
PSA MbedTLS Random Generation Seed Mbed TLS	0	91	April 14, 2025
"unused parameter" error when compiling Bug Reports / Issues	0	35	April 7, 2025
Error code list Mbed TLS mbed_tls	0	83	April 2, 2025
Using MbedTLS with External ECC Device Mbed TLS	0	107	March 28, 2025
Porting embedTLS on B-L462e-CELL1 Platform specific questions mbed_tls , stmicroelectronics	1	52	March 26, 2025
Observed the TLS handshake failure with the TLS1.3 running as client Bug Reports / Issues mbed_tls	1	156	March 26, 2025
Mbedtls_pk_decrypt returned -0x4080 - Can't find error code on pk.h (please help) Crypto and SSL questions mbed_tls , ble	1	818	February 18, 2025
RSA SHA-256 Encrypt String on ESP32 Mbed TLS	3	4536	February 21, 2025
ECDSA with SHA256 Library usage issue Mbed TLS	0	60	December 30, 2024
How can I flush Mbed-TLS writes to the TCP layer? Mbed TLS	1	117	December 12, 2024
mbedTLS on aarch64 Mbed TLS	0	50	December 10, 2024
Mbedtls handshake write certificate verify problem Mbed TLS	0	41	November 20, 2024
Tls configuration for project was successful connecting mqtt broker without tls Mbed TLS mbed_client , mbed_tls	0	118	October 30, 2024
Extract private key and certificate (PEM) from PKCS#12 archive Mbed TLS	0	147	October 9, 2024
How to setup mbedtls on visual studio code not in visual studio 2022 Mbed TLS	0	166	September 19, 2024