User Guide

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Supported PKCS #11 Key Types

The AWS CloudHSM software library for PKCS #11 supports the following key types.

  • RSA – 2048-bit to 4096-bit RSA keys, in increments of 256 bits

  • ECDSA – Generate keys with the P-224, P-256, P-384, P-521, and secp256k1 curves. Only the P-256, P-384, and secp256k1 curves are supported for sign and verify

  • AES – 128, 192, and 256-bit AES keys

  • Triple DES (3DES) – 192-bit keys

  • GENERIC_SECRET – 1 to 64 bytes