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  2. Certificate signing request - Wikipedia

    en.wikipedia.org/wiki/Certificate_signing_request

    The CSR is typically sent to a Registration Authority (RA), which checks the CSR contents and authenticates the applicant. On success the CSR is forwarded to a Certificate Authority (CA), which produces the X.509 public-key certificate, digitally signing it using the CA private key, and sends the new certificate to the applicant.

  3. Zamzar - Wikipedia

    en.wikipedia.org/wiki/Zamzar

    The service supports the conversion of documents, images, audio, video, e-Books, CAD files and compressed file formats. [ 6 ] [ 7 ] Users can type in a URL or upload one or more files (if they are all of the same format) from their computer; Zamzar will then convert the file(s) to another user-specified format, such as an Adobe PDF file to a ...

  4. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    Gary Kessler's list of file signatures; Online File Signature Database for Forensic Practitioners, a private compilation free to Law Enforcement; Man page for compress, uncompress, and zcat on SCO Open Server; Public Database of File Signatures; Complete list of magic numbers with sample files

  5. X.509 - Wikipedia

    en.wikipedia.org/wiki/X.509

    In cryptography, X.509 is an International Telecommunication Union (ITU) standard defining the format of public key certificates. [1] X.509 certificates are used in many Internet protocols, including TLS/SSL, which is the basis for HTTPS, [2] the secure protocol for browsing the web.

  6. PKCS 7 - Wikipedia

    en.wikipedia.org/wiki/PKCS_7

    PKCS #7 files may be stored both as raw DER format or as PEM format. PEM format is the same as DER format but wrapped inside Base64 encoding and sandwiched in between ‑‑‑‑‑BEGIN PKCS7‑‑‑‑‑ and ‑‑‑‑‑END PKCS7‑‑‑‑‑. Windows uses the .p7b file name extension [6] for both these encodings.

  7. Sparse matrix - Wikipedia

    en.wikipedia.org/wiki/Sparse_matrix

    The CSR format has been in use since at least the mid-1960s, with the first complete description appearing in 1967. [7] The CSR format stores a sparse m × n matrix M in row form using three (one-dimensional) arrays (V, COL_INDEX, ROW_INDEX). Let NNZ denote the number of nonzero entries in M. (Note that zero-based indices shall be used here.)

  8. Librsb - Wikipedia

    en.wikipedia.org/wiki/Librsb

    librsb is an open-source parallel library for sparse matrix computations using the Recursive Sparse Blocks (RSB) matrix format. librsb provides cache efficient multi-threaded Sparse BLAS operations via OpenMP , and is best suited to large sparse matrices .

  9. Community service register - Wikipedia

    en.wikipedia.org/wiki/Community_service_register

    A community service register is a register maintained in every Indian police station for a non-cognisable offence.If the offence is a cognisable offence, then a First Information Report (FIR) is created and registered.