package validator

[fanatid]

isHexadecimal looks not good for us validatorjs/validator.js#648
Is keys by geth can be encoded with base64?

should we implement own validators and remove this package?

[tinybike]

Good find. It seems simplest to follow the recommendation to use str.length % 2 == 0 && validator.isHexadecimal(str). Or, are there other issues with this library?

Re: base64, no it isn't normally used in Ethereum. I've considered removing base64 support altogether but it's been around a while and someone may be using it, so I've kept it in for now...