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November 1, 2019 17:54
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Broken RSA PKCS8 structure - missing the prime1 field of PKCS1
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| pkcs1 = { | |
| "version": 0, | |
| "modulus": 25919547779068344813557225018916459243888511060580538521317535335916939669305711198124884121889905971452025616014278206275340890512969518554057142602273923483999163870181876938187799162284290847100195363021806949618646246749945850028053399500856599964212551512723624622979641733723716683062556541446382026036719662605892702171703485093064473383644496568073302712792779146792258459955311804887040246129590180745167177685560045626455120174460475726780417816070155430314837988907034054380822924150908056421408653448071530817548866905564640574264813470442105775538969501246892411050963085070599532463413097543580760453193, | |
| "publicExponent": 65537, | |
| "privateExponent": 6861045132845227059914105614052561682148677691669609262978418343950548077927208719731914639769078364782485319538820793177359564347147339790893438971332957330979713670444408519213298440076718153340772222678827333597575035302471285018946097235773079270933355869855645512602817107841967697907582447793030431476561372029020840693003047830277442645408595897822393402430435683663351753252103807114340865617796587125991243245878778795655022702478470261006756923412842369418967378224833312446823234323818210214313849093066302434673658328873979344682940160656715114453916957628016142166150751544677936021478560345286591091025, | |
| "prime1": 176684713366633502991599280561701949917228530172698960651613929401818382967215310276834169854279311945534769811903587902247611526858792951899763167236008720188244717705616949799996326732893180938347697719412930198465866894083610167882668901351692272642080245435055047172924940241673334088829142136965896645399, | |
| "prime2": 146699435877530710599092081070170635240805658630013689016686118921159246178601036525553245401807587125889722341885791023098261307716306622263648164530051116132423046004224298618902784420546922819037049341046987599645165915365398384680170317939898258720825406834013181889162089722657009243869152008583544904607, | |
| "exponent1": 58092408923573229205837638243184058117039845707940815174954254096928185851924187952534029510353092357025546178599852176902078721649652418138396580978706927424451793294179380110324257265977726518753012656330161892008216729995477850642167775246444986662366985498795583509806469815944840364162081797569939742665, | |
| "exponent2": 10972742644180471235435698634450408989584957178453806301170260386522462498550471963139326013697007676444015120007387393308019545148928621425094271976537079379299293094171346137752131608549689727313114971234757972038094562111802232047579152212359144670178466275544083763685743378861782799234731268536499032949, | |
| "coefficient": 83810930343614071672960153390338745817429423298764618140478803631860183610359228632940112767516397098283369745834895394053754904680010627356799352611424125741639374805045928162595124087483269480146952565470959534058932675813384887753914664293142134018371006863905572066222920794426375140551397810007678938867 | |
| } | |
| del pkcs1['prime1'] | |
| import asn1tools | |
| foo = asn1tools.compile_files('/tmp/pkcs8.asn') | |
| encoded = foo.encode('RSAPrivateKey', pkcs1) | |
| import binascii | |
| pkcs8 = { | |
| "version": 0, | |
| "privateKeyAlgorithm": { | |
| "algorithm": "1.2.840.113549.1.1.1", | |
| "parameters": None, | |
| }, | |
| "privateKey": encoded | |
| } | |
| encodedpkcs8 = foo.encode('PrivateKeyInfo', pkcs8) | |
| binascii.hexlify(encodedpkcs8).decode('utf-8') |
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| Foo DEFINITIONS ::= BEGIN | |
| PrivateKeyInfo ::= SEQUENCE { | |
| version Version, | |
| privateKeyAlgorithm PrivateKeyAlgorithmIdentifier, | |
| privateKey PrivateKey | |
| } | |
| Version ::= INTEGER | |
| PrivateKeyAlgorithmIdentifier ::= AlgorithmIdentifier | |
| AlgorithmIdentifier ::= SEQUENCE { | |
| algorithm OBJECT IDENTIFIER, | |
| parameters NULL | |
| } | |
| PrivateKey ::= OCTET STRING | |
| RSAPrivateKey ::= SEQUENCE { | |
| version Version, | |
| modulus INTEGER, -- n | |
| publicExponent INTEGER, -- e | |
| privateExponent INTEGER, -- d | |
| -- prime1 INTEGER, | |
| prime2 INTEGER, -- q | |
| exponent1 INTEGER, -- d mod (p-1) | |
| exponent2 INTEGER, -- d mod (q-1) | |
| coefficient INTEGER, -- (inverse of q) mod p | |
| otherPrimeInfos OtherPrimeInfos OPTIONAL | |
| } | |
| OtherPrimeInfos ::= SEQUENCE SIZE(1..MAX) OF OtherPrimeInfo | |
| OtherPrimeInfo ::= SEQUENCE { | |
| prime INTEGER, -- ri | |
| exponent INTEGER, -- di | |
| coefficient INTEGER -- ti | |
| } | |
| END |
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| asn1tools==0.146.6 |
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