(maint) Prevent possible leak of env_md_ctx_st struct #644
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Prevent possible memory leak of the OpenSSL's `env_md_ctx_st` structure which could happen in the `calculateSha256` function in case of an IO error. While at it use the `boost::algorithm::hex` function for turning the digest's binary form into a hex string instead of a custom implementation.
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MikaelSmith
approved these changes
Aug 31, 2017
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Prevent possible memory leak of the OpenSSL's
env_md_ctx_ststructure which could happen in thecalculateSha256function in case of an IO error.While at it use the
boost::algorithm::hexfunction for turning the digest's binary form into a hex string instead of a custom implementation.