Mbed TLS

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. 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. Crypto and SSL questions Questions and discussions on cryptography, cryptographic primitives and SSL/TLS. 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	1367	May 10, 2018
ESP32 mbedTLS PKCS#7 signature usage Mbed TLS mbed_tls	1	601	October 20, 2025
Cannot Create Self-Signed Certificate Using Hardcoded PEM RSA Private Key Mbed TLS mbed_tls , stmicroelectronics	0	19	September 25, 2025
DTLS bug in mbedTLS 3.6.4? Bug Reports / Issues	2	30	September 18, 2025
DTLS 1.2 using MBEDTLS; error during HANDSHAKE Mbed TLS mbed_tls	1	80	September 18, 2025
X509_verify_cert() returned -9984 (-0x2700) Mbed TLS	20	10524	November 4, 2025
Memory problem when restarting MbedTLS Mbed TLS	4	92	July 1, 2025
Not able to integrate Mbedtls library in Ardupilot firmware Mbed TLS mbed_tls , stmicroelectronics	0	34	June 30, 2025
MbedTLS 3.6.1 using TLS 1.3 Mbed TLS mbed_client , stmicroelectronics	0	188	May 27, 2025
Handshake duration - how to speedup? Generic mbed_tls	1	590	May 27, 2025
Problems using MBED with LWIP Mbed TLS	1	44	May 13, 2025
PSA MbedTLS Random Generation Seed Mbed TLS	0	50	April 14, 2025
"unused parameter" error when compiling Bug Reports / Issues	0	27	April 7, 2025
Error code list Mbed TLS mbed_tls	0	53	April 2, 2025
Using MbedTLS with External ECC Device Mbed TLS	0	68	March 28, 2025
Porting embedTLS on B-L462e-CELL1 Platform specific questions mbed_tls , stmicroelectronics	1	31	March 26, 2025
Observed the TLS handshake failure with the TLS1.3 running as client Bug Reports / Issues mbed_tls	1	81	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	793	February 18, 2025
RSA SHA-256 Encrypt String on ESP32 Mbed TLS	3	4476	February 21, 2025
ECDSA with SHA256 Library usage issue Mbed TLS	0	32	December 30, 2024
How can I flush Mbed-TLS writes to the TCP layer? Mbed TLS	1	73	December 12, 2024
mbedTLS on aarch64 Mbed TLS	0	41	December 10, 2024
Mbedtls handshake write certificate verify problem Mbed TLS	0	29	November 20, 2024
Tls configuration for project was successful connecting mqtt broker without tls Mbed TLS mbed_client , mbed_tls	0	79	October 30, 2024
Extract private key and certificate (PEM) from PKCS#12 archive Mbed TLS	0	105	October 9, 2024
How to setup mbedtls on visual studio code not in visual studio 2022 Mbed TLS	0	126	September 19, 2024
Does mbedTLS support rx660 microcontroller which works on RXv3 architecture Crypto and SSL questions mbed_tls	1	48	September 17, 2024
Hi there! I am very excited to join Mbed Community! Generic	0	40	August 26, 2024
Mbedtls_ecp_point_read_binary: -0x0010 Crypto and SSL questions	0	38	August 13, 2024
Mbedtls_ecp_point_read_binary get MBEDTLS_ERR_MPI_ALLOC_FAILED Mbed TLS	0	30	July 30, 2024