1The key, message, and signature come from Example 1.1 of: 2ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/pkcs-1v2-1-vec.zip (pss-vect.txt) 3 4(The algorithm DER was synthesized to match, and the signature enclosed in a BIT STRING). 5 6It uses an RSA key with modulus length of 1024 bits, PSS padding, 7SHA-1 as the digest, MGF1 with SHA-1, and salt length of 20. 8 9 10 11-----BEGIN PUBLIC KEY----- 12MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQClbkoOcBAXWJpRh9x+qEHRVvLsDjatUqRN/rH 13mH3rZkdjFEFb/7bFitMDyg6EqiKOU3/Umq3KRy7MHzqv84LHf1c2VCAltWyuLbfXWce9jd8CSHL 14I8Jwpw4lmOb/idGfEFrMLT8Ms18pKA4Thrb2TE7yLh4fINDOjP+yJJvZohNwIDAQAB 15-----END PUBLIC KEY----- 16 17$ openssl asn1parse -i < [PUBLIC KEY] 18 0:d=0 hl=3 l= 159 cons: SEQUENCE 19 3:d=1 hl=2 l= 13 cons: SEQUENCE 20 5:d=2 hl=2 l= 9 prim: OBJECT :rsaEncryption 21 16:d=2 hl=2 l= 0 prim: NULL 22 18:d=1 hl=3 l= 141 prim: BIT STRING 23 24 25 26-----BEGIN ALGORITHM----- 27MA0GCSqGSIb3DQEBCjAA 28-----END ALGORITHM----- 29 30$ openssl asn1parse -i < [ALGORITHM] 31 0:d=0 hl=2 l= 13 cons: SEQUENCE 32 2:d=1 hl=2 l= 9 prim: OBJECT :rsassaPss 33 13:d=1 hl=2 l= 0 cons: SEQUENCE 34 35 36 37-----BEGIN DATA----- 38zch9oiPXht87ReC7vHITJtHuKvgGzDFUdcxvDZxm4bYjcdRc4jkuGskoRMMQEC8Vag2NUsH0xAu 39jqmUJV4bLdpdXplY7qVj+0LzJhOi1F6PV9RWyO4pB50qoZ2k/kN+wYabobfqu5kRywA5fIJRXKc 40vr538Gznjgj0CY+6QfnWGTwDF+i2DUtghKy0LSnjgIo7w3LYXjMRcPy/fMctC3HClmSLOk0Q9BY 41pXQgHqmJcqydE/Z6o/SI8QlNwKYKL0WvgJUbxMP0uM7k20mduCK7RtzMYt1CgFn0A== 42-----END DATA----- 43 44 45 46-----BEGIN SIGNATURE----- 47A4GBAJB0MI+1mOlwGyKUOI5S+XH6rCtgpRRa8YXfUoe17SiH5Xzn/UTchjTkB8jg5DYLwibz7CJ 48/nZ5UY46NMfUFEhXfbrucL5V5qndZijj5FLW5wb2DxOL584Kg0Ko1Qv/uZZhKYBvGnrKN6yfcoS 49yCwtTD9mzVAPH/K5lNik4wy7M8 50-----END SIGNATURE----- 51 52$ openssl asn1parse -i < [SIGNATURE] 53 0:d=0 hl=3 l= 129 prim: BIT STRING 54