Add full HKDF implementation

Adds the full HKDF as class HKDF, renames the existing HKDF,
which only implemented the expansion step, to HKDF_Expand
and adds the extraction step as HKDF_Extract.

The latter two are usually only used seperately in
protocols such as TLS. A normal user would go for the
full HKDF.

1 files changed, 26 insertions, 38 deletions

diff --git a/src/tests/data/kdf/hkdf.vec b/src/tests/data/kdf/hkdf.vec
index 38d3c6d3e..64b7ad660 100644
--- a/src/tests/data/kdf/hkdf.vec
+++ b/src/tests/data/kdf/hkdf.vec
@@ -1,80 +1,68 @@
 # Data from RFC 5869
 
 [HKDF(SHA-1)]
-IKM  = 0B0B0B0B0B0B0B0B0B0B0B
-XTS = 000102030405060708090A0B0C
-Salt = F0F1F2F3F4F5F6F7F8F9
+Salt = 000102030405060708090A0B0C
+Label = F0F1F2F3F4F5F6F7F8F9
 OutputLen  = 42
-Secret  = 9B6C18C432A7BF8F0E71C8EB88F4B30BAA2BA243
+Secret  = 0B0B0B0B0B0B0B0B0B0B0B
 Output  = 085A01EA1B10F36933068B56EFA5AD81A4F14B822F5B091568A9CDD4F155FDA2C22E422478D305F3F896
 
-IKM  = 000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F
-XTS = 606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F909192939495969798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAF
-Salt = B0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF
+Salt = 606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F909192939495969798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAF
+Label = B0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF
 OutputLen  = 82
-Secret  = 8ADAE09A2A307059478D309B26C4115A224CFAF6
+Secret  = 000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F
 Output  = 0BD770A74D1160F7C9F12CD5912A06EBFF6ADCAE899D92191FE4305673BA2FFE8FA3F1A4E5AD79F3F334B3B202B2173C486EA37CE3D397ED034C7F9DFEB15C5E927336D0441F4C4300E2CFF0D0900B52D3B4
 
-IKM  = 0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B
 OutputLen  = 42
-Secret  = DA8C8A73C7FA77288EC6F5E7C297786AA0D32D01
+Secret  = 0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B
 Output  = 0AC1AF7002B3D761D1E55298DA9D0506B9AE52057220A306E07B6B87E8DF21D0EA00033DE03984D34918
 
-IKM  = 0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C
 OutputLen  = 42
-Secret  = 2ADCCADA18779E7C2077AD2EB19D3F3E731385DD
+Secret  = 0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C
 Output  = 2C91117204D745F3500D636A62F64F0AB3BAE548AA53D423B0D1F27EBBA6F5E5673A081D70CCE7ACFC48
 
 [HKDF(SHA-256)]
-IKM  = 0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B
-XTS = 000102030405060708090A0B0C
-Salt = F0F1F2F3F4F5F6F7F8F9
+Salt = 000102030405060708090A0B0C
+Label = F0F1F2F3F4F5F6F7F8F9
 OutputLen  = 42
-Secret  = 077709362C2E32DF0DDC3F0DC47BBA6390B6C73BB50F9C3122EC844AD7C2B3E5
+Secret  = 0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B
 Output  = 3CB25F25FAACD57A90434F64D0362F2A2D2D0A90CF1A5A4C5DB02D56ECC4C5BF34007208D5B887185865
 
-IKM  = 000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F
-XTS = 606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F909192939495969798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAF
-Salt = B0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF
+Salt = 606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F909192939495969798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAF
+Label = B0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF
 OutputLen  = 82
-Secret  = 06A6B88C5853361A06104C9CEB35B45CEF760014904671014A193F40C15FC244
+Secret  = 000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F
 Output  = B11E398DC80327A1C8E7F78C596A49344F012EDA2D4EFAD8A050CC4C19AFA97C59045A99CAC7827271CB41C65E590E09DA3275600C2F09B8367793A9ACA3DB71CC30C58179EC3E87C14C01D5C1F3434F1D87
 
-IKM  = 0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B
 OutputLen  = 42
-Secret  = 19EF24A32C717B167F33A91D6F648BDF96596776AFDB6377AC434C1C293CCB04
+Secret  = 0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B
 Output  = 8DA4E775A563C18F715F802A063C5A31B8A11F5C5EE1879EC3454E5F3C738D2D9D201395FAA4B61A96C8
 
 # From https://www.kullo.net/blog/hkdf-sha-512-test-vectors/
 
 [HKDF(SHA-512)]
-IKM = 0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B
-XTS = 000102030405060708090A0B0C
-Salt = F0F1F2F3F4F5F6F7F8F9
+Salt = 000102030405060708090A0B0C
+Label = F0F1F2F3F4F5F6F7F8F9
 OutputLen = 42
-Secret = 665799823737DED04A88E47E54A5890BB2C3D247C7A4254A8E61350723590A26C36238127D8661B88CF80EF802D57E2F7CEBCF1E00E083848BE19929C61B4237
+Secret = 0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B
 Output = 832390086CDA71FB47625BB5CEB168E4C8E26A1A16ED34D9FC7FE92C1481579338DA362CB8D9F925D7CB
 
-IKM = 000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F
-XTS = 606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F909192939495969798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAF
-Salt = B0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF
+Salt = 606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F909192939495969798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAF
+Label = B0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF
 OutputLen = 82
-Secret = 35672542907D4E142C00E84499E74E1DE08BE86535F924E022804AD775DDE27EC86CD1E5B7D178C74489BDBEB30712BEB82D4F97416C5A94EA81EBDF3E629E4A
+Secret = 000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F
 Output = CE6C97192805B346E6161E821ED165673B84F400A2B514B2FE23D84CD189DDF1B695B48CBD1C8388441137B3CE28F16AA64BA33BA466B24DF6CFCB021ECFF235F6A2056CE3AF1DE44D572097A8505D9E7A93
 
-IKM = 0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B
 OutputLen = 42
-Secret = FD200C4987AC491313BD4A2A13287121247239E11C9EF82802044B66EF357E5B194498D0682611382348572A7B1611DE54764094286320578A863F36562B0DF6
+Secret = 0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B0B
 Output = F5FA02B18298A72A8C23898A8703472C6EB179DC204C03425C970E3B164BF90FFF22D04836D0E2343BAC
 
-IKM = 0B0B0B0B0B0B0B0B0B0B0B
-XTS = 000102030405060708090A0B0C
-Salt = F0F1F2F3F4F5F6F7F8F9
+Salt = 000102030405060708090A0B0C
+Label = F0F1F2F3F4F5F6F7F8F9
 OutputLen = 42
-Secret = 67409C9CAC28B52EE9FAD91C2FDA999F7CA22E3434F0AE772863836568AD6A7F10CF113BFDDD560129A594A8F52385C2D661D785D29CE93A11400C920683181D
+Secret = 0B0B0B0B0B0B0B0B0B0B0B
 Output = 7413E8997E020610FBF6823F2CE14BFF01875DB1CA55F68CFCF3954DC8AFF53559BD5E3028B080F7C068
 
-IKM = 0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C
 OutputLen = 42
-Secret = 5346B376BF3AA9F84F8F6ED5B1C4F489172E244DAC303D12F68ECC766EA600AA88495E7FB605803122FA136924A840B1F0719D2D5F68E29B242299D758ED680C
+Secret = 0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C0C
 Output = 1407D46013D98BC6DECEFCFEE55F0F90B0C7F63D68EB1A80EAF07E953CFC0A3A5240A155D6E4DAA965BB