In downloading, but no provide confirmation code #137

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opened 2024-12-31 02:35:05 +01:00 by septs · 3 comments

septs commented

2024-12-31 02:35:05 +01:00

Contributor

I think "es10b_prepare_download" is not handling the confirmation code correctly

     (*env)->CallVoidMethod(env, callback, on_state_update, download_state_downloading);
     ret = es10b_prepare_download(ctx, _confirmation_code);
     syslog(LOG_INFO, "es10b_prepare_download %d", ret);
     if (ret < 0) {
         ret = -ES10B_ERROR_REASON_UNDEFINED;
         goto out;
     }

I think "es10b_prepare_download" is not handling the confirmation code correctly https://gitea.angry.im/PeterCxy/OpenEUICC/src/commit/bcd1295a18e6a0b00f9752d0a516f870d517fff2/libs/lpac-jni/src/main/jni/lpac-jni/lpac-download.c#L112-L118

20241230-212932_ebhv93.txt

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septs referenced this issue

2024-12-31 02:35:47 +01:00

PeterCxy commented

2025-01-26 22:04:23 +01:00

Owner

What I suspect is some sort of encoding issue here. Do we have an example of such a confirmation code that failed download?

septs commented

2025-02-02 14:16:45 +01:00

Author

Contributor

PrepareDownloadRequest ::= [33] SEQUENCE { -- Tag 'BF21'
    -- Signed information
    smdpSigned2 SmdpSigned2,
    -- tag '5F37'
    smdpSignature2 [APPLICATION 55] OCTET STRING,
    -- Hash of confirmation code
    hashCc Octet32 OPTIONAL,
    -- CERT.DPpb.ECDSA
    smdpCertificate Certificate
}

SmdpSigned2 ::= SEQUENCE {
    -- The TransactionID generated by the SM-DP+
    transactionId [0] TransactionId,
    -- Indicates if the Confirmation Code is required
    ccRequiredFlag BOOLEAN,
    -- otPK.EUICC.ECKA already used for binding the BPP, tag '5F49'
    bppEuiccOtpk [APPLICATION 73] OCTET STRING OPTIONAL
}

from https://www.gsma.com/solutions-and-impact/technologies/esim/wp-content/uploads/2020/06/SGP.22-v2.2.2.pdf#page=181

``` PrepareDownloadRequest ::= [33] SEQUENCE { -- Tag 'BF21' -- Signed information smdpSigned2 SmdpSigned2, -- tag '5F37' smdpSignature2 [APPLICATION 55] OCTET STRING, -- Hash of confirmation code hashCc Octet32 OPTIONAL, -- CERT.DPpb.ECDSA smdpCertificate Certificate } SmdpSigned2 ::= SEQUENCE { -- The TransactionID generated by the SM-DP+ transactionId [0] TransactionId, -- Indicates if the Confirmation Code is required ccRequiredFlag BOOLEAN, -- otPK.EUICC.ECKA already used for binding the BPP, tag '5F49' bppEuiccOtpk [APPLICATION 73] OCTET STRING OPTIONAL } ``` from https://www.gsma.com/solutions-and-impact/technologies/esim/wp-content/uploads/2020/06/SGP.22-v2.2.2.pdf#page=181

septs commented

2025-02-02 14:23:35 +01:00

Author

Contributor

0b81e8ab14/euicc/es10b.c (L100-L105)

https://github.com/estkme-group/lpac/blob/0b81e8ab1454b3dd4db9e9103e71fa79d2ced5e2/euicc/es10b.c#L100-L105