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Add 'next_message' methods to cipher and MAC vtables.

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This provides a convenient hook to be called between SSH messages, for
the crypto components to do any per-message processing like
incrementing a sequence number.
This commit is contained in:
Simon Tatham
2022-08-16 18:27:06 +01:00
parent 9160c41e7b
commit 840043f06e
12 changed files with 66 additions and 0 deletions
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5
crypto/des.c
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@ -689,6 +689,7 @@ const ssh_cipheralg ssh_des = {
.setkey = des_cbc_setkey,
.encrypt = des_cbc_encrypt,
.decrypt = des_cbc_decrypt,
.next_message = nullcipher_next_message,
.ssh2_id = "des-cbc",
.blksize = 8,
.real_keybits = 56,
@ -705,6 +706,7 @@ const ssh_cipheralg ssh_des_sshcom_ssh2 = {
.setkey = des_cbc_setkey,
.encrypt = des_cbc_encrypt,
.decrypt = des_cbc_decrypt,
.next_message = nullcipher_next_message,
.ssh2_id = "des-cbc@ssh.com",
.blksize = 8,
.real_keybits = 56,
@ -808,6 +810,7 @@ const ssh_cipheralg ssh_3des_ssh2 = {
.setkey = des3_cbc1_setkey,
.encrypt = des3_cbc1_cbc_encrypt,
.decrypt = des3_cbc1_cbc_decrypt,
.next_message = nullcipher_next_message,
.ssh2_id = "3des-cbc",
.blksize = 8,
.real_keybits = 168,
@ -905,6 +908,7 @@ const ssh_cipheralg ssh_3des_ssh2_ctr = {
.setkey = des3_sdctr_setkey,
.encrypt = des3_sdctr_encrypt_decrypt,
.decrypt = des3_sdctr_encrypt_decrypt,
.next_message = nullcipher_next_message,
.ssh2_id = "3des-ctr",
.blksize = 8,
.real_keybits = 168,
@ -1040,6 +1044,7 @@ const ssh_cipheralg ssh_3des_ssh1 = {
.setkey = des3_cbc3_setkey,
.encrypt = des3_cbc3_cbc_encrypt,
.decrypt = des3_cbc3_cbc_decrypt,
.next_message = nullcipher_next_message,
.blksize = 8,
.real_keybits = 168,
.padded_keybytes = 24,