randombit/botan

Health v2 · maintenance only

Flags: no_releases no_readme

Adoption not part of the score

3307 stars · 658 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Botan is a C++ cryptography library offering TLS 1.2/1.3, X.509 PKI, modern AEAD ciphers, post-quantum algorithms, and hardware token support, with C, C++, and Python APIs plus a CLI. It is BSD-licensed, heavily tested including automated side-channel detection, and released quarterly.

Use cases

• implement TLS 1.3 client and server in C++
• X.509 certificate parsing and PKI operations
• encrypt data with modern AEAD ciphers
• memory-hard password hashing
• post-quantum key exchange with ML-KEM
• PKCS#11 and TPM hardware token integration
• command-line crypto operations

When to choose

• you need a comprehensive, permissively-licensed crypto library in C++
• you want TLS, PKI, and post-quantum support from one library
• you need fine-grained build configuration or amalgamation builds
• side-channel resistance and extensive testing matter

When to avoid

• you need a minimal, single-purpose crypto primitive
• your stack requires a different language without bindings
• you rely on Botan 2.x, which is end-of-life

Facets

library · maturity stable

cryptography security http-client http-server cli security developer-tools backend cpp c python cross-platform windows tls x509 pki post-quantum-cryptography aead pkcs11 tpm password-hashing side-channel-detection linux macos

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