Switch from subtle-encoding to base16ct (#443)

cli/Cargo.toml

@@ -17,10 +17,10 @@ rust-version = "1.56"
 [dependencies]
 clap = { version = "4", features = ["derive"] }
 env_logger = "0.9"
+hex = { package = "base16ct", version = "0.1", features = ["alloc"] }
 log = "0.4"
 once_cell = "1"
 sha2 = "0.10"
-subtle-encoding = "0.5"
 termcolor = "1"
 x509-parser = "0.14"
 yubikey = { version = "0.6", path = ".." }

cli/src/terminal.rs

@@ -8,7 +8,6 @@ use std::{
     str,
     sync::Mutex,
 };
-use subtle_encoding::hex;
 use termcolor::{Color, ColorChoice, ColorSpec, StandardStream, StandardStreamLock, WriteColor};
 use x509_parser::parse_x509_certificate;
 use yubikey::{certificate::Certificate, piv::*, YubiKey};
@@ -200,7 +199,7 @@ pub fn print_cert_info(
                 print_cert_attr(
                     stream,
                     "Fingerprint",
-                    str::from_utf8(hex::encode(fingerprint).as_slice()).unwrap(),
+                    &hex::upper::encode_string(&fingerprint),
                 )?;
                 print_cert_attr(
                     stream,