1.8.0 RSA publicKeyDER Only Supports 3 Byte Long Exponent

[WFrost3]

The publicKeyDER method for in RSA.swift only supports the conversion of RSA keys that have a exponent that is exactly 3 bytes long.

Most commonly, exponents are either 65537 or 3 and while an exponent of 3 can be vulnerable it is a valid exponent; the common exponents have byte lengths of 3 and 1. In addition, exponents can be non standard and have a byte length that is not 3 or 1.

PR: #1029 adds support for the conversion of RSA keys with an exponent of any length.

[krzyzanowskim]

thank you, it's shipped in 1.8.1