23 lines
635 B
Rust
23 lines
635 B
Rust
pub fn validate_public_key(public_key: &str) -> Result<(), String> {
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if !public_key.starts_with('@') {
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return Err("Expected '@' sigil as first character".to_string());
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}
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let dot_index = match public_key.rfind('.') {
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Some(index) => index,
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None => return Err("could not find '.' character".to_string()),
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};
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if !&public_key.ends_with(".ed25519") {
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return Err("hashing algorithm must be ed25519".to_string());
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}
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let base64_str = &public_key[1..dot_index];
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if base64_str.len() != 44 {
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return Err("base64 data length is incorrect".to_string());
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}
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Ok(())
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}
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