57     struct TestCase {  in test_hmac()  struct
58         key: &'static str, // 32 bytes, hex-encoded  in test_hmac()
59         data: &'static [u8],  in test_hmac()
60         want: &'static str, // 32 bytes, hex-encoded  in test_hmac()
85     struct TestCase {  in test_hkdf()  struct
86         ikm: &'static str,  in test_hkdf()
87         salt: &'static str,  in test_hkdf()
88         info: &'static str,  in test_hkdf()
89         want: &'static str,  in test_hkdf()
181     struct TestCase {  in test_aes_gcm()  struct
182         key: &'static str,  in test_aes_gcm()
183         iv: &'static str,  in test_aes_gcm()
184         aad: &'static str,  in test_aes_gcm()
185         msg: &'static str,  in test_aes_gcm()
186         ct: &'static str,  in test_aes_gcm()
187         tag: &'static str,  in test_aes_gcm()
299     struct TestCase {  in test_ecdsa()  struct
300         key: EcVerifyKey,  in test_ecdsa()
301         msg: &'static str, // hex  in test_ecdsa()
302         sig: &'static str, // hex  in test_ecdsa()