https://bz.apache.org/bugzilla/show_bug.cgi?id=69607
--- Comment #8 from sve...@redseal.net ---
We have a getWebSocketUpdate() method in
org.apache.tomcat.websocket.server.UpgradeUtil class which causes the issue.
private static String getWebSocketAccept(String key) {
byte[] digest =
ConcurrentMessageDigest.digestSHA1(key.getBytes(StandardCharsets.ISO_8859_1),
WS_ACCEPT);
return Base64.getEncoder().encodeToString(digest);
}
Here we are calling digestSHA1 but because of static block in
ConcurrentMessageDigest class we are getting the error as:
java.lang.ExceptionInInitializerError: Exception
java.lang.IllegalArgumentException: Digest algorithm unavailable [in thread
"https-jsse-nio2-8443-exec-7"]
java.lang.SecurityException: Algorithm not allowable in FIPS140 mode: MD5
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