On January 23, 2026, the German Federal Office for Information Security (BSI) published version 2026-01 of its Technical Guideline TR-02102-1 on cryptographic mechanisms. The update increased the general security level requirement to 120 bits and expanded the set of recommended post-quantum cryptography algorithms, according to the BSI publication page.
Recommended PQC key encapsulation mechanisms now include FrodoKEM, Classic McEliece, and ML-KEM. For digital signatures, the guideline recommends ML-DSA, SLH-DSA, and hash-based schemes LMS/HSS and XMSS/XMSS-MT. The BSI continues to recommend hybrid approaches combining post-quantum and classical schemes for most deployments.
Companion updates to TR-02102-2 (TLS), TR-02102-3 (IPsec/IKEv2), and TR-02102-4 (SSH) were published simultaneously, applying PQC recommendations across major network security protocols.