420 lines
14 KiB
Go
420 lines
14 KiB
Go
package ccm
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// Refer to RFC 3610 section 8 for the vectors.
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import (
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"bytes"
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"crypto/aes"
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"encoding/hex"
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"errors"
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"fmt"
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"testing"
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)
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func mustHexDecode(s string) []byte {
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r, err := hex.DecodeString(s)
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if err != nil {
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panic(err)
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}
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return r
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}
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var (
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aesKey1to12 = mustHexDecode("c0c1c2c3c4c5c6c7c8c9cacbcccdcecf") //nolint:gochecknoglobals
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aesKey13to24 = mustHexDecode("d7828d13b2b0bdc325a76236df93cc6b") //nolint:gochecknoglobals
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)
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// AESKey: AES Key
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// CipherText: Authenticated and encrypted output
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// ClearHeaderOctets: Input with X cleartext header octets
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// Data: Input with X cleartext header octets
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// M: length(CBC-MAC)
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// Nonce: Nonce
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type vector struct {
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AESKey []byte
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CipherText []byte
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ClearHeaderOctets int
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Data []byte
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M int
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Nonce []byte
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}
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func TestRFC3610Vectors(t *testing.T) {
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cases := []vector{
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// Vectors 1-12
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{
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AESKey: aesKey1to12,
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CipherText: mustHexDecode("0001020304050607588c979a61c663d2f066d0c2c0f989806d5f6b61dac38417e8d12cfdf926e0"),
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ClearHeaderOctets: 8,
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Data: mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e"),
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M: 8,
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Nonce: mustHexDecode("00000003020100a0a1a2a3a4a5"),
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},
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{
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AESKey: aesKey1to12,
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CipherText: mustHexDecode("000102030405060772c91a36e135f8cf291ca894085c87e3cc15c439c9e43a3ba091d56e10400916"),
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ClearHeaderOctets: 8,
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Data: mustHexDecode("000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F"),
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M: 8,
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Nonce: mustHexDecode("00000004030201a0a1a2a3a4a5"),
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},
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{
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AESKey: aesKey1to12,
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CipherText: mustHexDecode("000102030405060751b1e5f44a197d1da46b0f8e2d282ae871e838bb64da8596574adaa76fbd9fb0c5"),
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ClearHeaderOctets: 8,
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Data: mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20"),
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M: 8,
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Nonce: mustHexDecode("00000005040302a0a1a2a3a4a5"),
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},
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{
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AESKey: aesKey1to12,
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CipherText: mustHexDecode("000102030405060708090a0ba28c6865939a9a79faaa5c4c2a9d4a91cdac8c96c861b9c9e61ef1"),
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ClearHeaderOctets: 12,
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Data: mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e"),
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M: 8,
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Nonce: mustHexDecode("00000006050403a0a1a2a3a4a5"),
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},
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{
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AESKey: aesKey1to12,
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CipherText: mustHexDecode("000102030405060708090a0bdcf1fb7b5d9e23fb9d4e131253658ad86ebdca3e51e83f077d9c2d93"),
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ClearHeaderOctets: 12,
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Data: mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"),
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M: 8,
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Nonce: mustHexDecode("00000007060504a0a1a2a3a4a5"),
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},
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{
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AESKey: aesKey1to12,
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CipherText: mustHexDecode("000102030405060708090a0b6fc1b011f006568b5171a42d953d469b2570a4bd87405a0443ac91cb94"),
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ClearHeaderOctets: 12,
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Data: mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20"),
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M: 8,
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Nonce: mustHexDecode("00000008070605a0a1a2a3a4a5"),
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},
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{
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AESKey: aesKey1to12,
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CipherText: mustHexDecode("00010203040506070135d1b2c95f41d5d1d4fec185d166b8094e999dfed96c048c56602c97acbb7490"),
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ClearHeaderOctets: 8,
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Data: mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e"),
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M: 10,
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Nonce: mustHexDecode("00000009080706a0a1a2a3a4a5"),
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},
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{
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AESKey: aesKey1to12,
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CipherText: mustHexDecode("00010203040506077b75399ac0831dd2f0bbd75879a2fd8f6cae6b6cd9b7db24c17b4433f434963f34b4"),
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ClearHeaderOctets: 8,
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Data: mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"),
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M: 10,
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Nonce: mustHexDecode("0000000a090807a0a1a2a3a4a5"),
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},
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{
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AESKey: aesKey1to12,
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CipherText: mustHexDecode("000102030405060782531a60cc24945a4b8279181ab5c84df21ce7f9b73f42e197ea9c07e56b5eb17e5f4e"),
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ClearHeaderOctets: 8,
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Data: mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20"),
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M: 10,
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Nonce: mustHexDecode("0000000b0a0908a0a1a2a3a4a5"),
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},
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{
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AESKey: aesKey1to12,
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CipherText: mustHexDecode("000102030405060708090a0b07342594157785152b074098330abb141b947b566aa9406b4d999988dd"),
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ClearHeaderOctets: 12,
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Data: mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e"),
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M: 10,
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Nonce: mustHexDecode("0000000c0b0a09a0a1a2a3a4a5"),
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},
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{
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AESKey: aesKey1to12,
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CipherText: mustHexDecode("000102030405060708090a0b676bb20380b0e301e8ab79590a396da78b834934f53aa2e9107a8b6c022c"),
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ClearHeaderOctets: 12,
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Data: mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"),
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M: 10,
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Nonce: mustHexDecode("0000000d0c0b0aa0a1a2a3a4a5"),
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},
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{
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AESKey: aesKey1to12,
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CipherText: mustHexDecode("000102030405060708090a0bc0ffa0d6f05bdb67f24d43a4338d2aa4bed7b20e43cd1aa31662e7ad65d6db"),
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ClearHeaderOctets: 12,
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Data: mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20"),
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M: 10,
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Nonce: mustHexDecode("0000000e0d0c0ba0a1a2a3a4a5"),
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},
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// Vectors 13-24
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{
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AESKey: aesKey13to24,
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CipherText: mustHexDecode("0be1a88bace018b14cb97f86a2a4689a877947ab8091ef5386a6ffbdd080f8e78cf7cb0cddd7b3"),
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ClearHeaderOctets: 8,
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Data: mustHexDecode("0be1a88bace018b108e8cf97d820ea258460e96ad9cf5289054d895ceac47c"),
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M: 8,
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Nonce: mustHexDecode("00412b4ea9cdbe3c9696766cfa"),
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},
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{
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AESKey: aesKey13to24,
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CipherText: mustHexDecode("63018f76dc8a1bcb4ccb1e7ca981befaa0726c55d378061298c85c92814abc33c52ee81d7d77c08a"),
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ClearHeaderOctets: 8,
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Data: mustHexDecode("63018f76dc8a1bcb9020ea6f91bdd85afa0039ba4baff9bfb79c7028949cd0ec"),
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M: 8,
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Nonce: mustHexDecode("0033568ef7b2633c9696766cfa"),
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},
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{
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AESKey: aesKey13to24,
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CipherText: mustHexDecode("aa6cfa36cae86b40b1d23a2220ddc0ac900d9aa03c61fcf4a559a4417767089708a776796edb723506"),
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ClearHeaderOctets: 8,
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Data: mustHexDecode("aa6cfa36cae86b40b916e0eacc1c00d7dcec68ec0b3bbb1a02de8a2d1aa346132e"),
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M: 8,
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Nonce: mustHexDecode("00103fe41336713c9696766cfa"),
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},
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{
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AESKey: aesKey13to24,
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CipherText: mustHexDecode("d0d0735c531e1becf049c24414d253c3967b70609b7cbb7c499160283245269a6f49975bcadeaf"),
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ClearHeaderOctets: 12,
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Data: mustHexDecode("d0d0735c531e1becf049c24412daac5630efa5396f770ce1a66b21f7b2101c"),
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M: 8,
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Nonce: mustHexDecode("00764c63b8058e3c9696766cfa"),
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},
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{
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AESKey: aesKey13to24,
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CipherText: mustHexDecode("77b60f011c03e1525899bcae5545ff1a085ee2efbf52b2e04bee1e2336c73e3f762c0c7744fe7e3c"),
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ClearHeaderOctets: 12,
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Data: mustHexDecode("77b60f011c03e1525899bcaee88b6a46c78d63e52eb8c546efb5de6f75e9cc0d"),
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M: 8,
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Nonce: mustHexDecode("00f8b678094e3b3c9696766cfa"),
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},
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{
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AESKey: aesKey13to24,
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CipherText: mustHexDecode("cd9044d2b71fdb8120ea60c0009769ecabdf48625594c59251e6035722675e04c847099e5ae0704551"),
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ClearHeaderOctets: 12,
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Data: mustHexDecode("cd9044d2b71fdb8120ea60c06435acbafb11a82e2f071d7ca4a5ebd93a803ba87f"),
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M: 8,
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Nonce: mustHexDecode("00d560912d3f703c9696766cfa"),
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},
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{
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AESKey: aesKey13to24,
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CipherText: mustHexDecode("d85bc7e69f944fb8bc218daa947427b6db386a99ac1aef23ade0b52939cb6a637cf9bec2408897c6ba"),
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ClearHeaderOctets: 8,
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Data: mustHexDecode("d85bc7e69f944fb88a19b950bcf71a018e5e6701c91787659809d67dbedd18"),
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M: 10,
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Nonce: mustHexDecode("0042fff8f1951c3c9696766cfa"),
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},
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{
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AESKey: aesKey13to24,
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CipherText: mustHexDecode("74a0ebc9069f5b375810e6fd25874022e80361a478e3e9cf484ab04f447efff6f0a477cc2fc9bf548944"),
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ClearHeaderOctets: 8,
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Data: mustHexDecode("74a0ebc9069f5b371761433c37c5a35fc1f39f406302eb907c6163be38c98437"),
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M: 10,
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Nonce: mustHexDecode("00920f40e56cdc3c9696766cfa"),
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},
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{
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AESKey: aesKey13to24,
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CipherText: mustHexDecode("44a3aa3aae6475caf2beed7bc5098e83feb5b31608f8e29c38819a89c8e776f1544d4151a4ed3a8b87b9ce"),
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ClearHeaderOctets: 8,
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Data: mustHexDecode("44a3aa3aae6475caa434a8e58500c6e41530538862d686ea9e81301b5ae4226bfa"),
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M: 10,
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Nonce: mustHexDecode("0027ca0c7120bc3c9696766cfa"),
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},
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{
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AESKey: aesKey13to24,
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CipherText: mustHexDecode("ec46bb63b02520c33c49fd7031d750a09da3ed7fddd49a2032aabf17ec8ebf7d22c8088c666be5c197"),
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ClearHeaderOctets: 12,
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Data: mustHexDecode("ec46bb63b02520c33c49fd70b96b49e21d621741632875db7f6c9243d2d7c2"),
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M: 10,
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Nonce: mustHexDecode("005b8ccbcd9af83c9696766cfa"),
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},
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{
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AESKey: aesKey13to24,
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CipherText: mustHexDecode("47a65ac78b3d594227e85e71e882f1dbd38ce3eda7c23f04dd65071eb41342acdf7e00dccec7ae52987d"),
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ClearHeaderOctets: 12,
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Data: mustHexDecode("47a65ac78b3d594227e85e71e2fcfbb880442c731bf95167c8ffd7895e337076"),
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M: 10,
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Nonce: mustHexDecode("003ebe94044b9a3c9696766cfa"),
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},
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{
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AESKey: aesKey13to24,
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CipherText: mustHexDecode("6e37a6ef546d955d34ab6059f32905b88a641b04b9c9ffb58cc390900f3da12ab16dce9e82efa16da62059"),
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ClearHeaderOctets: 12,
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Data: mustHexDecode("6e37a6ef546d955d34ab6059abf21c0b02feb88f856df4a37381bce3cc128517d4"),
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M: 10,
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Nonce: mustHexDecode("008d493b30ae8b3c9696766cfa"),
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},
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}
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if len(cases) != 24 {
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t.Fatalf("Expected %d test cases, got: %d", 24, len(cases))
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t.FailNow()
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}
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for idx, c := range cases {
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c := c
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t.Run(fmt.Sprintf("packet vector #%d", idx+1), func(t *testing.T) {
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t.Parallel()
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blk, err := aes.NewCipher(c.AESKey)
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if err != nil {
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t.Fatalf("could not initialize AES block cipher from key: %v", err)
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}
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lccm, err := NewCCM(blk, c.M, len(c.Nonce))
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if err != nil {
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t.Fatalf("could not create CCM: %v", err)
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}
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t.Run("seal", func(t *testing.T) {
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var dst []byte
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dst = lccm.Seal(dst, c.Nonce, c.Data[c.ClearHeaderOctets:], c.Data[:c.ClearHeaderOctets])
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if !bytes.Equal(c.CipherText[c.ClearHeaderOctets:], dst) {
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t.Fatalf("ciphertext does not match, wanted %v, got %v",
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c.CipherText[c.ClearHeaderOctets:], dst)
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}
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})
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t.Run("open", func(t *testing.T) {
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var dst []byte
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dst, err = lccm.Open(dst, c.Nonce, c.CipherText[c.ClearHeaderOctets:], c.CipherText[:c.ClearHeaderOctets])
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if err != nil {
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t.Fatalf("failed to unseal: %v", err)
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}
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if !bytes.Equal(c.Data[c.ClearHeaderOctets:], dst) {
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t.Fatalf("plaintext does not match, wanted %v, got %v",
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c.Data[c.ClearHeaderOctets:], dst)
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}
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})
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})
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}
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}
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func TestNewCCMError(t *testing.T) {
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cases := map[string]struct {
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vector
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err error
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}{
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"ShortNonceLength": {
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vector{
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AESKey: aesKey1to12,
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M: 8,
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Nonce: mustHexDecode("a0a1a2a3a4a5"),
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}, errInvalidNonceSize,
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},
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"LongNonceLength": {
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vector{
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AESKey: aesKey1to12,
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M: 8,
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Nonce: mustHexDecode("0001020304050607080910111213"),
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}, errInvalidNonceSize,
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},
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"ShortTag": {
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vector{
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AESKey: aesKey1to12,
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M: 3,
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Nonce: mustHexDecode("00010203040506070809101112"),
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}, errInvalidTagSize,
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},
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"LongTag": {
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vector{
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AESKey: aesKey1to12,
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M: 17,
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Nonce: mustHexDecode("00010203040506070809101112"),
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}, errInvalidTagSize,
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},
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}
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for name, c := range cases {
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c := c
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t.Run(name, func(t *testing.T) {
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blk, err := aes.NewCipher(c.AESKey)
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if err != nil {
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t.Fatalf("could not initialize AES block cipher from key: %v", err)
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}
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if _, err := NewCCM(blk, c.M, len(c.Nonce)); !errors.Is(err, c.err) {
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t.Fatalf("expected error '%v', got '%v'", c.err, err)
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}
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})
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}
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}
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func TestSealError(t *testing.T) {
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cases := map[string]struct {
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vector
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err error
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}{
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"InvalidNonceLength": {
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vector{
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Data: mustHexDecode("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e"),
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M: 8,
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Nonce: mustHexDecode("00000003020100a0a1a2a3a4"), // short
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}, errInvalidNonceSize,
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},
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"PlaintextTooLong": {
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vector{
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Data: make([]byte, 100000),
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M: 8,
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Nonce: mustHexDecode("00000003020100a0a1a2a3a4a5"),
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}, errPlaintextTooLong,
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},
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}
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blk, err := aes.NewCipher(aesKey1to12)
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if err != nil {
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t.Fatalf("could not initialize AES block cipher from key: %v", err)
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}
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lccm, err := NewCCM(blk, 8, 13)
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if err != nil {
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t.Fatalf("could not create CCM: %v", err)
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}
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for name, c := range cases {
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c := c
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t.Run(name, func(t *testing.T) {
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defer func() {
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if err := recover(); !errors.Is(err.(error), c.err) {
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t.Errorf("expected panic '%v', got '%v'", c.err, err)
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}
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}()
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var dst []byte
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_ = lccm.Seal(dst, c.Nonce, c.Data[c.ClearHeaderOctets:], c.Data[:c.ClearHeaderOctets])
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})
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}
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}
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func TestOpenError(t *testing.T) {
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cases := map[string]struct {
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vector
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err error
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}{
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"CiphertextTooShort": {
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vector{
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CipherText: make([]byte, 10),
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ClearHeaderOctets: 8,
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Nonce: mustHexDecode("00000003020100a0a1a2a3a4a5"),
|
|
}, errCiphertextTooShort,
|
|
},
|
|
"CiphertextTooLong": {
|
|
vector{
|
|
CipherText: make([]byte, 100000),
|
|
ClearHeaderOctets: 8,
|
|
Nonce: mustHexDecode("00000003020100a0a1a2a3a4a5"),
|
|
}, errCiphertextTooLong,
|
|
},
|
|
}
|
|
|
|
blk, err := aes.NewCipher(aesKey1to12)
|
|
if err != nil {
|
|
t.Fatalf("could not initialize AES block cipher from key: %v", err)
|
|
}
|
|
|
|
lccm, err := NewCCM(blk, 8, 13)
|
|
if err != nil {
|
|
t.Fatalf("could not create CCM: %v", err)
|
|
}
|
|
|
|
for name, c := range cases {
|
|
c := c
|
|
t.Run(name, func(t *testing.T) {
|
|
var dst []byte
|
|
_, err = lccm.Open(dst, c.Nonce, c.CipherText[c.ClearHeaderOctets:], c.CipherText[:c.ClearHeaderOctets])
|
|
if !errors.Is(err, c.err) {
|
|
t.Errorf("expected error '%v', got '%v'", c.err, err)
|
|
}
|
|
})
|
|
}
|
|
}
|