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1. What is the Cryptographic Library
The cryptographic library package includes all the major security algorithms for encryption, hashing, message authentication and digital signing, enabling developers to meet application requirements for any combination of data integrity, confidentiality, identification/authentication, and non-repudiation.
2. Getting started with STM32 and the Cryptographic Library
The Cortex™-M Optimized Crypto Stack (CMOX) is an optimized Cryptographic Library to be used with STM32 Cortex-M based MCUs.
Supported cryptographic algorithms:
- Cipher encryption and decryption:
- AES: CBC, CCM, CFB, CTR, ECB, GCM, OFB, XTS, KeyWrap
- SM4: CBC, CFB, CTR, ECB, OFB
- Chacha-Poly1305
- Digest generation:
- SHA-1
- SHA-2: SHA-224, SHA-256, SHA-384, SHA-512, SHA-512/224, SHA-512/256
- SHA-3: SHA3-224, SHA3-256, SHA3-384, SHA3-512
- SM3
- SHAKE
- Message authentication code (MAC) generation:
- HMAC:
- SHA-1
- SHA-2: SHA-224, SHA-256, SHA-384, SHA-512, SHA-512/224, SHA-512/256
- SM3
- AES: CMAC
- KMAC: SHAKE
- HMAC:
- Elliptic curves based on key generation, signature and verification:
- Elliptic curve digital signature algorithm (ECDSA): NIST-R (P-224, P-256, P-384, P-521), NIST-K P-256, BRAINPOOL R/T (P-160, P-192, P-224, P-256, P-320, P-384, P-512), ANSSI P-256
- Edwards-curve digital signature algorithm (EdDSA): Ed448, Ed25519
- SM2 digital signature algorithm: OSCCA 256-bits curve
- Elliptic curves Diffie-Hellman:
- Curve448, curve25519
- NIST-R (P-224, P-256, P-384, P-521), NIST-K P-256, BRAINPOOL R/T (P-160, P-192, P-224, P-256, P-320, P-384, P-512), ANSSI P-256
- RSA signature, verification, encryption & decryption:
- PKCS#1 v1.5 and v2.2
- Chinese remainder theorem (CRT) key representation
- Hash method:
- SHA-1
- SHA-2: SHA-224, SHA-256, SHA-384, SHA-512, SHA-512/224, SHA-512/256
- Deterministic random bit generator (DRBG):
- CTR-DRBG
3. STM32 compliant with the Cryptographic Library
The delivered libraries (one per each Cortex-M core) can be used on any STM32 MCUs.
4. STMicroelectronics Resources
Where to get the Cryptographic library package: [STM32 cryptographic firmware library software expansion for STM32Cube]