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Themis is open-source high-level cryptographic services library for mobile and server platforms, providing secure messaging and secure data storage.

Themis provides three important cryptographic services:

Secure Message: a simple encrypted messaging solution for widest scope of applications. ECC + ECDSA / RSA + PSS + PKCS#7.

Secure Session: session-oriented, forward secrecy messaging solution with better security guarantees, but more demanding infrastructure. ECDH key agreement, ECC & AES encryption.

Secure Cell: a multi-mode cryptographic container, suitable for storing anything from encrypted files to database records and format-preserved strings. Secure Cell is built around AES in GCM (Token and Seal modes) and CTR (Context imprint mode).

Code Quality Rank: L3
Programming language: C

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