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-rw-r--r--tex/context/base/mkiv/l-sha.lua27
1 files changed, 27 insertions, 0 deletions
diff --git a/tex/context/base/mkiv/l-sha.lua b/tex/context/base/mkiv/l-sha.lua
new file mode 100644
index 000000000..8481f7f45
--- /dev/null
+++ b/tex/context/base/mkiv/l-sha.lua
@@ -0,0 +1,27 @@
+if not modules then modules = { } end modules ['l-sha'] = {
+ version = 1.001,
+ comment = "companion to luat-lib.mkiv",
+ author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright = "PRAGMA ADE / ConTeXt Development Team",
+ license = "see context related readme files"
+}
+
+if sha2 then
+
+ local lpegmatch = lpeg.match
+ local lpegpatterns = lpeg.patterns
+ local bytestohex = lpegpatterns.bytestohex
+ local bytestoHEX = lpegpatterns.bytestoHEX
+
+ local digest256 = sha2.digest256
+ local digest384 = sha2.digest384
+ local digest512 = sha2.digest512
+
+ sha2.hash256 = function(str) return lpegmatch(bytestohex,digest256(str)) end
+ sha2.hash384 = function(str) return lpegmatch(bytestohex,digest384(str)) end
+ sha2.hash512 = function(str) return lpegmatch(bytestohex,digest512(str)) end
+ sha2.HASH256 = function(str) return lpegmatch(bytestoHEX,digest256(str)) end
+ sha2.HASH384 = function(str) return lpegmatch(bytestoHEX,digest384(str)) end
+ sha2.HASH512 = function(str) return lpegmatch(bytestoHEX,digest512(str)) end
+
+end