PSA Crypto API

The Crypto API provides symmetric and asymmetric cryptography, hash, RNG, and key storage services with support for different key lifetime policies.

See the PSA APIs page for other PSA APIs.

Specification source files, updates, and discussions, as well as reference headers and example code, can be found in the associated PSA API GitHub project.

Test suites to verify a correct implementation can be found in the PSA API Test suites.

Specifications

Version			Publication
1.5.0	HTML	↓ PDF	June 2026
1.4.1	HTML	↓ PDF	January 2026
1.4.0		↓ PDF	November 2025
1.3.2	HTML	↓ PDF	September 2025
1.3.1		↓ PDF	June 2025
1.3.0		↓ PDF	March 2025
1.2.1	HTML	↓ PDF	March 2024
1.2.0		↓ PDF	February 2024
1.1.2	HTML	↓ PDF	March 2023
1.1.1		↓ PDF	October 2022
1.1.0		↓ PDF	February 2022
1.0.1	HTML	↓ PDF	August 2020
1.0.0		↓ PDF	Feburary 2020

Extensions

Extension	Version			Publication
PQC	1.5.0	Integrated	n/a	June 2026
PQC	1.4 Final 1	HTML	↓ PDF	January 2026
PQC	1.4 Final 0		↓ PDF	November 2025
PQC	1.3 Beta 3	HTML	↓ PDF	September 2025
PQC	1.3 Beta 2		↓ PDF	July 2025
PQC	1.3 Beta 1		↓ PDF	June 2025
PQC	1.3 Beta 0		↓ PDF	March 2025
PAKE	1.3.0	Integrated	n/a	March 2025
PAKE	1.2 Final 1	HTML	↓ PDF	March 2024
PAKE	1.2 Final		↓ PDF	February 2024
PAKE	1.1 Beta 1	HTML	↓ PDF	October 2022
PAKE	1.1 Beta 0		↓ PDF	February 2022