work by allocating a fix amount of stack and imposing a hard limit on
what can be allocated. Updated all users of alloca.

Rev: src/nettle/bignum-random.c:1.4
Rev: src/nettle/cbc.c:1.8
Rev: src/nettle/dsa-keygen.c:1.7
Rev: src/nettle/hmac.c:1.6
Rev: src/nettle/pkcs1-rsa-md5.c:1.3
Rev: src/nettle/pkcs1-rsa-sha1.c:1.3
Rev: src/nettle/rsa-decrypt.c:1.5
Rev: src/nettle/rsa-encrypt.c:1.8
Rev: src/nettle/sexp.c:1.15

config.h.

Rev: src/nettle/ChangeLog:1.195
Rev: src/nettle/aes-decrypt-table.c:1.4
Rev: src/nettle/aes-decrypt.c:1.5
Rev: src/nettle/aes-encrypt-table.c:1.4
Rev: src/nettle/aes-encrypt.c:1.5
Rev: src/nettle/aes-meta.c:1.3
Rev: src/nettle/aes-set-decrypt-key.c:1.2
Rev: src/nettle/aes-set-encrypt-key.c:1.2
Rev: src/nettle/aes.c:1.12
Rev: src/nettle/aesdata.c:1.2
Rev: src/nettle/arcfour-meta.c:1.2
Rev: src/nettle/arcfour.c:1.3
Rev: src/nettle/base16-decode.c:1.2
Rev: src/nettle/base16-encode.c:1.2
Rev: src/nettle/base16-meta.c:1.3
Rev: src/nettle/base64-decode.c:1.5
Rev: src/nettle/base64-encode.c:1.3
Rev: src/nettle/base64-meta.c:1.4
Rev: src/nettle/bignum-random.c:1.3
Rev: src/nettle/bignum.c:1.7
Rev: src/nettle/blowfish.c:1.4
Rev: src/nettle/buffer-init.c:1.3
Rev: src/nettle/buffer.c:1.8
Rev: src/nettle/cast128-meta.c:1.3
Rev: src/nettle/cast128.c:1.4
Rev: src/nettle/cbc.c:1.6
Rev: src/nettle/des-compat.c:1.10
Rev: src/nettle/des.c:1.7
Rev: src/nettle/des3.c:1.2
Rev: src/nettle/dsa-keygen.c:1.6
Rev: src/nettle/dsa-sign.c:1.7
Rev: src/nettle/dsa-verify.c:1.4
Rev: src/nettle/dsa.c:1.5
Rev: src/nettle/examples/io.c:1.4
Rev: src/nettle/examples/nettle-benchmark.c:1.8
Rev: src/nettle/examples/nettle-openssl.c:1.2
Rev: src/nettle/examples/rsa-keygen.c:1.10
Rev: src/nettle/examples/rsa-sign.c:1.5
Rev: src/nettle/examples/rsa-verify.c:1.4
Rev: src/nettle/hmac-md5.c:1.5
Rev: src/nettle/hmac-sha1.c:1.2
Rev: src/nettle/hmac-sha256.c:1.2
Rev: src/nettle/hmac.c:1.4
Rev: src/nettle/knuth-lfib.c:1.2
Rev: src/nettle/md5-compat.c:1.3
Rev: src/nettle/md5-meta.c:1.2
Rev: src/nettle/md5.c:1.6
Rev: src/nettle/memxor.c:1.2
Rev: src/nettle/nettle-internal.c:1.3
Rev: src/nettle/pgp-encode.c:1.4
Rev: src/nettle/pkcs1-rsa-md5.c:1.2
Rev: src/nettle/pkcs1-rsa-sha1.c:1.2
Rev: src/nettle/pkcs1.c:1.2
Rev: src/nettle/realloc.c:1.3
Rev: src/nettle/rsa-compat.c:1.8
Rev: src/nettle/rsa-decrypt.c:1.4
Rev: src/nettle/rsa-encrypt.c:1.5
Rev: src/nettle/rsa-keygen.c:1.5
Rev: src/nettle/rsa-md5-sign.c:1.2
Rev: src/nettle/rsa-md5-verify.c:1.2
Rev: src/nettle/rsa-sha1-sign.c:1.2
Rev: src/nettle/rsa-sha1-verify.c:1.2
Rev: src/nettle/rsa-sign.c:1.3
Rev: src/nettle/rsa-verify.c:1.2
Rev: src/nettle/rsa.c:1.12
Rev: src/nettle/rsa2openpgp.c:1.2
Rev: src/nettle/rsa2sexp.c:1.7
Rev: src/nettle/serpent-meta.c:1.2
Rev: src/nettle/serpent.c:1.4
Rev: src/nettle/sexp-format.c:1.9
Rev: src/nettle/sexp-transport-format.c:1.2
Rev: src/nettle/sexp-transport.c:1.4
Rev: src/nettle/sexp.c:1.14
Rev: src/nettle/sexp2bignum.c:1.5
Rev: src/nettle/sexp2dsa.c:1.4
Rev: src/nettle/sexp2rsa.c:1.11
Rev: src/nettle/sha1-meta.c:1.2
Rev: src/nettle/sha1.c:1.8
Rev: src/nettle/sha256-meta.c:1.2
Rev: src/nettle/sha256.c:1.3
Rev: src/nettle/tools/input.c:1.2
Rev: src/nettle/tools/misc.c:1.2
Rev: src/nettle/tools/output.c:1.3
Rev: src/nettle/tools/parse.c:1.2
Rev: src/nettle/tools/sexp-conv.c:1.14
Rev: src/nettle/twofish-meta.c:1.2
Rev: src/nettle/twofish.c:1.6
Rev: src/nettle/yarrow256.c:1.17
Rev: src/nettle/yarrow_key_event.c:1.4

(pkcs1_signature_prefix): New function.

Rev: src/nettle/pkcs1-rsa-md5.c:1.1
Rev: src/nettle/pkcs1-rsa-sha1.c:1.1
Rev: src/nettle/pkcs1.c:1.1
Rev: src/nettle/pkcs1.h:1.1

nettle_mpz_sizeinbase_256. Updated all callers.

Rev: src/nettle/bignum-random.c:1.2
Rev: src/nettle/dsa-keygen.c:1.4
Rev: src/nettle/dsa.c:1.3
Rev: src/nettle/pgp-encode.c:1.3
Rev: src/nettle/rsa-compat.c:1.5
Rev: src/nettle/rsa-encrypt.c:1.3
Rev: src/nettle/rsa_md5.c:1.7
Rev: src/nettle/rsa_sha1.c:1.7

* rsa-encrypt.c (rsa_encrypt): Likewise.
* rsa.c (rsa_compute_root): Likewise.
* rsa_md5.c (rsa_md5_sign): Likewise.
(rsa_md5_verify): Likewise.
* rsa_sha1.c (rsa_sha1_sign): Likewise.
(rsa_sha1_verify): Likewise.

Rev: src/nettle/rsa-decrypt.c:1.2
Rev: src/nettle/rsa-encrypt.c:1.2
Rev: src/nettle/rsa.c:1.9
Rev: src/nettle/rsa.h:1.15
Rev: src/nettle/rsa_md5.c:1.6
Rev: src/nettle/rsa_sha1.c:1.6

--disable-public-key. Updated rsa-files to check for that, rather
than for HAVE_LIBGMP.

Rev: src/nettle/rsa-keygen.c:1.3
Rev: src/nettle/rsa.c:1.8
Rev: src/nettle/rsa2sexp.c:1.2
Rev: src/nettle/rsa_md5.c:1.5
Rev: src/nettle/rsa_sha1.c:1.5
Rev: src/nettle/sexp2rsa.c:1.3
Rev: src/nettle/testsuite/rsa-keygen-test.c:1.4
Rev: src/nettle/testsuite/rsa-test.c:1.5
Rev: src/nettle/testsuite/rsa2sexp-test.c:1.2
Rev: src/nettle/testsuite/sexp2rsa-test.c:1.2
Rev: src/nettle/testsuite/testutils.c:1.13
Rev: src/nettle/testsuite/testutils.h:1.11

* rsa_md5.c: Likesize.
* rsa_sha1.c: Likesize.

Rev: src/nettle/rsa_md5.c:1.4
Rev: src/nettle/rsa_sha1.c:1.4

Rev: src/nettle/hmac-md5.h:1.1
Rev: src/nettle/rsa.h:1.5
Rev: src/nettle/rsa_md5.c:1.3
Rev: src/nettle/rsa_sha1.c:1.3
Rev: src/nettle/testsuite/Makefile.am:1.18
Rev: src/nettle/testsuite/aes-test.c:1.2
Rev: src/nettle/testsuite/arcfour-test.c:1.2
Rev: src/nettle/testsuite/bignum-test.c:1.2
Rev: src/nettle/testsuite/blowfish-test.c:1.2
Rev: src/nettle/testsuite/cast128-test.c:1.2
Rev: src/nettle/testsuite/cbc-test.c:1.2
Rev: src/nettle/testsuite/des-compat-test.c:1.3
Rev: src/nettle/testsuite/des-test.c:1.2
Rev: src/nettle/testsuite/des3-test.c:1.2
Rev: src/nettle/testsuite/md5-compat-test.c:1.2
Rev: src/nettle/testsuite/md5-test.c:1.2
Rev: src/nettle/testsuite/serpent-test.c:1.2
Rev: src/nettle/testsuite/sha1-test.c:1.2
Rev: src/nettle/testsuite/sha256-test.c:1.2
Rev: src/nettle/testsuite/testutils.c:1.6
Rev: src/nettle/testsuite/testutils.h:1.4
Rev: src/nettle/testsuite/twofish-test.c:1.2
Rev: src/nettle/testsuite/yarrow-test.c:1.11

Updated calls of md5 functions.
* rsa_sha1.c: Likewise.

* rsa.c (rsa_prepare_public_key): Renamed function, was
rsa_init_public_key.
(rsa_prepare_private_key): Renamed function, was
rsa_init_private_key.

Rev: src/nettle/rsa.c:1.2
Rev: src/nettle/rsa.h:1.3
Rev: src/nettle/rsa_md5.c:1.2
Rev: src/nettle/rsa_sha1.c:1.2

* rsa_md5.c: New file, PKCS#1 rsa-md5 signatures.

Rev: src/nettle/rsa_md5.c:1.1
Rev: src/nettle/rsa_sha1.c:1.1