[FEATURE]: verify checksum in CheckIsValidAddress

[joticajulian]

Is there an existing issue for this?

• I have searched the existing issues

New feature

Verify the checksum in CheckIsValidAddress:

koinos-util-golang/output.go

Line 75 in 0c4eb59

func CheckIsValidAddress(s string) bool {

The address has 25 bytes, consisting of 3 parts:

• prefix: 1 byte
• data: 20 bytes
• checksum: 4 bytes

Verify this:

• The prefix must be 0 (for P2PKH addresses)
• checksum must be equal to first 4 bytes of sha256(sha256(prefix + data))

Reference:
https://medium.com/coinmonks/how-to-generate-a-bitcoin-address-step-by-step-9d7fcbf1ad0b

Anything else?

No response

[sgerbino]

Related to #33.

[koinos-ci]

This issue is stale because it has been open for 30 days with no activity.