1This test exercises using a different hash function parameter to the mask gen 2function (SHA-256 for the hash, but SHA-512 for the MGF1 hash). 3 4This test data was constructed manually by calling signing functions from 5OpenSSL code. 6 7It constructs an RSASSA-PSS signature using: 8 * Key with modulus 1024 bit 9 * Salt length 33 bytes 10 * Digest function of SHA-256 11 * Mask gen function of MGF1 with SHA-512 12 13 14 15-----BEGIN PUBLIC KEY----- 16MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQClbkoOcBAXWJpRh9x+qEHRVvLsDjatUqRN/rH 17mH3rZkdjFEFb/7bFitMDyg6EqiKOU3/Umq3KRy7MHzqv84LHf1c2VCAltWyuLbfXWce9jd8CSHL 18I8Jwpw4lmOb/idGfEFrMLT8Ms18pKA4Thrb2TE7yLh4fINDOjP+yJJvZohNwIDAQAB 19-----END PUBLIC KEY----- 20 21$ openssl asn1parse -i < [PUBLIC KEY] 22 0:d=0 hl=3 l= 159 cons: SEQUENCE 23 3:d=1 hl=2 l= 13 cons: SEQUENCE 24 5:d=2 hl=2 l= 9 prim: OBJECT :rsaEncryption 25 16:d=2 hl=2 l= 0 prim: NULL 26 18:d=1 hl=3 l= 141 prim: BIT STRING 27 28 29 30-----BEGIN ALGORITHM----- 31MEEGCSqGSIb3DQEBCjA0oA8wDQYJYIZIAWUDBAIBBQChHDAaBgkqhkiG9w0BAQgwDQYJYIZIAWU 32DBAIDBQCiAwIBIQ== 33-----END ALGORITHM----- 34 35$ openssl asn1parse -i < [ALGORITHM] 36 0:d=0 hl=2 l= 65 cons: SEQUENCE 37 2:d=1 hl=2 l= 9 prim: OBJECT :rsassaPss 38 13:d=1 hl=2 l= 52 cons: SEQUENCE 39 15:d=2 hl=2 l= 15 cons: cont [ 0 ] 40 17:d=3 hl=2 l= 13 cons: SEQUENCE 41 19:d=4 hl=2 l= 9 prim: OBJECT :sha256 42 30:d=4 hl=2 l= 0 prim: NULL 43 32:d=2 hl=2 l= 28 cons: cont [ 1 ] 44 34:d=3 hl=2 l= 26 cons: SEQUENCE 45 36:d=4 hl=2 l= 9 prim: OBJECT :mgf1 46 47:d=4 hl=2 l= 13 cons: SEQUENCE 47 49:d=5 hl=2 l= 9 prim: OBJECT :sha512 48 60:d=5 hl=2 l= 0 prim: NULL 49 62:d=2 hl=2 l= 3 cons: cont [ 2 ] 50 64:d=3 hl=2 l= 1 prim: INTEGER :21 51 52 53 54-----BEGIN DATA----- 55VGVzdCBtZXNzYWdlIHRvIGJlIHNpZ25lZC4uLg== 56-----END DATA----- 57 58 59 60-----BEGIN SIGNATURE----- 61A4GBAFob0HSC5uuTqKu4J/lj+5bDa+Hhij4H3klWnvt6Yc+wwPza7/UC4lgGGyvZqD32RUEdt7v 62Z14qqYNk53b5aj4C2gBMvLzV7Pay4mmQM4DSWa5JHMxTILqE3DDqihrbMcBw2q3XAsLcjeqLWQ9 63yp8tfnV21h98qsCLtErrxZWHRr 64-----END SIGNATURE----- 65 66$ openssl asn1parse -i < [SIGNATURE] 67 0:d=0 hl=3 l= 129 prim: BIT STRING 68