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  2. New 5G NR (New Radio) 3GPP/LTE APIs available

    We have added the new 3GPP/LTE 5G NR (New Radio) ASN.1 API’s for use with ASN1C.  These 5G API’s are extended sample programs that contain the complete ASN.1 specifications extracted from the relevant 3GPP 5G standard documents.  The API’s are available at the following …

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  3. Updated 3GPP/LTE APIs (including rel14) available

    We have updated the 3GPP/LTE ASN.1 API’s we have available for use with ASN1C.  These API’s are extended sample programs that contain the complete ASN.1 specifications extracted from the relevant 3GPP standard documents.  The API’s are available at the following URL ("LTE ASN.1 …

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  4. NAS/RRC ASN1C SDK Add-on Now Available

    We recently released an add-on package for the ASN1C ASN.1 compiler that allows C code to be generated for encoding and decoding 3GPP layer 3 messages as defined in the NAS and GERAN RRC specifications.  The add-on installs ASN.1 specifications with special markup that provides an approximation of …

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  5. New Component Now Available: NASDLL

    A new component is now available to aid developers who work with 3GPP Non-Access Stratum (NAS) protocols.  This is the NASDLL - a dynamic-link library for Windows as well as a shared object file for Linux.  It is available in both 32 and 64-bit versions.

    The DLL supports encoding and decoding …

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  6. 3GPP NAS Message Security Protection

    ASN1C 6.7 adds support for 3GPP NAS message security protection. Messages can use either the null algorithm or the AES-based security algorithms (we do not yet support the SNOW3G or ZUC based algorithms). You can try out our NAS decoder online. Or, you can download the 3GPP API ASN1C …

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