Jan 25, 2020
Jan 25, 2020 Decrypt Advertising ID | Real-time Bidding | Google Developers Jun 09, 2020 Wrong HMAC in the implementation of ECIES IEEE1363a throwNoesCryptoException("Cannot perform HMAC"); } Here : "osslEncPubKey" and "osslEphKey" are, respectively, the encryption public key of receiver and the just created ephemeral key; "K" is a byte array containing the result of KDF function;
RFC 4757 - The RC4-HMAC Kerberos Encryption Types Used by
Wrong HMAC in the implementation of ECIES IEEE1363a
Here is a clone of the hash_hmac function you can use in the event you need an HMAC generator and Hash is not available. It's only usable with MD5 and SHA1 encryption algorithms, but its output is identical to the official hash_hmac function (so far at least).