SA1019: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead. (staticcheck)

SA1019: "github.com/golang/protobuf/proto" is deprecated: Use the "google.golang.org/protobuf/proto" package instead. (staticcheck)

SA1019: "golang.org/x/crypto/openpgp" is deprecated: this package is unmaintained except for security fixes. New applications should consider a more focused, modern alternative to OpenPGP for their specific task. If you are required to interoperate with OpenPGP systems and need a maintained package, consider a community fork. See https://golang.org/issue/44226. (staticcheck)

File is not `goimports`-ed (goimports)

var `big2` is unused (unused)

S1001: should use copy(to, from) instead of a loop (gosimple)

SA1019: "golang.org/x/crypto/ripemd160" is deprecated: RIPEMD-160 is a legacy hash and should not be used for new applications. Also, this package does not and will not provide an optimized implementation. Instead, use a modern hash like SHA-256 (from crypto/sha256). (staticcheck)

issues found