Add support for deciphering encrypted LCP user fields - #871
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Fixes #147. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
stevenzeck
reviewed
Aug 10, 2026
| func decryptedString(from value: String?) throws -> String? { | ||
| guard | ||
| let value = value, | ||
| let encryptedData = Data(base64Encoded: value), |
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I would add ignoreUnknownCharacters in case there are weird spaces in the json payload.
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Fixes #147.
Exposes liblcp's
decryptField()(available since R2LCPClient 4.3.0) through the toolkit:decryptField(field:using:)on theLCPClientfacade, forwarding raw (Base64-decoded) ciphertext toR2LCPClient.decryptField. For consistency on the breaking 4.0 release,getSupportedLCPProfileURIs()also becomes a hard requirement and both backward-compatible defaults are removed.decipherUserField(_:)requirement and a best-effortdecipheredUser()convenience onLCPLicense: it returns theUserwith the fields listed inencrypted(e.g.name,email) decrypted with the user key. Fields that cannot be deciphered are left untouched and remain listed inencrypted; the call throws when the license is restricted.Includes TestApp facade forwarding, 9 unit tests for the field decryption, and CHANGELOG, Migration Guide and LCP guide updates.
Note: the
decryptFieldinput format (raw ciphertext, no internal Base64 decode) was verified against the disassembled 4.3.0 framework; a quick runtime check with a real license containing encrypted user fields would be a definitive confirmation.🤖 Generated with Claude Code