What features do commercial key management solutions have?

Below are the top features of the leading commercial key management solutions:

• Leading commercial key management solutions have dedicated hardware/software appliances for key storage that can be on the Cloud or on-premises. This key storage is only accessible by the customer, and allows the customer to inject the key into any CSP.
• Commercial key management solutions are up to FIPS 140-2 Level 4 compliant and support symmetric and asymmetric keys. They also support AES – 128, 192, or 256 bit keys, RSA keys with  SHA-1, SHA-256, SHA-384, SHA-512, SSL3, Blake2b (256, 384, 512), or Blake2s-256 between 1024 and 8192 bits, DES keys of 56bits, 3DES keys of 168bits, and HMAC keys between 128 and 512 bits.
• Commercial key management solutions are capable of key management, storage, and auditing, encryption, and tokenization.