It seems like Google Cloud did not support secp256k1 signing in the past (1, 2), but it appears to now.
Would love to see GCP KMS support added!
I'm not sure if the fine print on that page affects Ethereum signatures:
Note: secp256k1 curves generate signatures in the "normalized" form only (also known as the "lower-S form"). For additional cryptographic details about these signatures, see DER encoding
It seems like Google Cloud did not support secp256k1 signing in the past (1, 2), but it appears to now.
Would love to see GCP KMS support added!
I'm not sure if the fine print on that page affects Ethereum signatures: