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  SQL Server Tips by Gama and Naughter

Public Key Management

To facilitate usage of the signature verification functions, the public key part of the public key / private key pair used to generate signatures must be available, as the verification XPís require it as a parameter. To facilitate this, three XPís are provided, namely XP_RSA_EXPORT_SIGNKEY, XP_RSA_EXPORT_ENCRYPTKEY and XP_DSA_EXPORT. These export the public keys into the single output parameter, which these XPís require. Since XP_CRYPTOAPI uses RSA both for signing and encryption, two different methods are provided to export these keys.


The above book excerpt is from:

Super SQL Server Systems
Turbocharge Database Performance with C++ External Procedures

ISBN: 0-9761573-2-2
Joseph Gama, P. J. Naughter

 http://www.rampant-books.com/book_2005_2_sql_server_external_procedures.htm  

 

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