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iklen = EVP_CIPHER_key_length(cipher);
ivlen = EVP_CIPHER_iv_length(cipher);
dk_len = iklen+ivlen;
}
/* Derive key */
if (!PKCS5_PBKDF2_HMAC(pass, (int) pass_len, salt, (int) salt_len, iter, md, dk_len, tmpkeyiv)) {
Tcl_AppendResult(interp, "Key derivation failed: ", REASON(), (char *) NULL);
return TCL_ERROR;
}
/* Set result to key and iv */
if (cipher == NULL) {
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(tmpkeyiv, (Tcl_Size) dk_len));
} else {
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iklen = EVP_CIPHER_key_length(cipher);
ivlen = EVP_CIPHER_iv_length(cipher);
dk_len = iklen+ivlen;
}
/* Derive key */
if (!PKCS5_PBKDF2_HMAC(pass, (int) pass_len, salt, (int) salt_len, iter, md, dk_len, tmpkeyiv)) {
Tcl_AppendResult(interp, "Key derivation failed: ", GET_ERR_REASON(), (char *) NULL);
return TCL_ERROR;
}
/* Set result to key and iv */
if (cipher == NULL) {
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(tmpkeyiv, (Tcl_Size) dk_len));
} else {
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pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_HKDF, NULL);
if (pctx == NULL) {
Tcl_AppendResult(interp, "Memory allocation error", (char *) NULL);
goto error;
}
if (EVP_PKEY_derive_init(pctx) < 1) {
Tcl_AppendResult(interp, "Initialize failed: ", REASON(), (char *) NULL);
goto error;
}
/* Set config parameters */
if (EVP_PKEY_CTX_set_hkdf_md(pctx, md) < 1) {
Tcl_AppendResult(interp, "Set digest failed: ", REASON(), (char *) NULL);
goto error;
}
if (EVP_PKEY_CTX_set1_hkdf_key(pctx, key, (int) key_len) < 1) {
Tcl_AppendResult(interp, "Set key failed: ", REASON(), (char *) NULL);
goto error;
}
if (salt != NULL && EVP_PKEY_CTX_set1_hkdf_salt(pctx, salt, (int) salt_len) < 1) {
Tcl_AppendResult(interp, "Set salt failed: ", REASON(), (char *) NULL);
goto error;
}
if (info != NULL && EVP_PKEY_CTX_add1_hkdf_info(pctx, info, (int) info_len) < 1) {
Tcl_AppendResult(interp, "Set info failed: ", REASON(), (char *) NULL);
goto error;
}
/* Get buffer */
resultObj = Tcl_NewObj();
if ((out = Tcl_SetByteArrayLength(resultObj, (Tcl_Size) dk_len)) == NULL) {
Tcl_AppendResult(interp, "Memory allocation error", (char *) NULL);
goto error;
}
out_len = (size_t) dk_len;
/* Derive key */
if (EVP_PKEY_derive(pctx, out, &out_len) > 0) {
/* Shrink buffer to actual size */
Tcl_SetByteArrayLength(resultObj, (Tcl_Size) out_len);
Tcl_SetObjResult(interp, resultObj);
res = TCL_OK;
goto done;
} else {
Tcl_AppendResult(interp, "Key derivation failed: ", REASON(), (char *) NULL);
Tcl_DecrRefCount(resultObj);
}
error:
res = TCL_ERROR;
done:
if (pctx != NULL) {
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pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_HKDF, NULL);
if (pctx == NULL) {
Tcl_AppendResult(interp, "Memory allocation error", (char *) NULL);
goto error;
}
if (EVP_PKEY_derive_init(pctx) < 1) {
Tcl_AppendResult(interp, "Initialize failed: ", GET_ERR_REASON(), (char *) NULL);
goto error;
}
/* Set config parameters */
if (EVP_PKEY_CTX_set_hkdf_md(pctx, md) < 1) {
Tcl_AppendResult(interp, "Set digest failed: ", GET_ERR_REASON(), (char *) NULL);
goto error;
}
if (EVP_PKEY_CTX_set1_hkdf_key(pctx, key, (int) key_len) < 1) {
Tcl_AppendResult(interp, "Set key failed: ", GET_ERR_REASON(), (char *) NULL);
goto error;
}
if (salt != NULL && EVP_PKEY_CTX_set1_hkdf_salt(pctx, salt, (int) salt_len) < 1) {
Tcl_AppendResult(interp, "Set salt failed: ", GET_ERR_REASON(), (char *) NULL);
goto error;
}
if (info != NULL && EVP_PKEY_CTX_add1_hkdf_info(pctx, info, (int) info_len) < 1) {
Tcl_AppendResult(interp, "Set info failed: ", GET_ERR_REASON(), (char *) NULL);
goto error;
}
/* Get buffer */
resultObj = Tcl_NewObj();
if ((out = Tcl_SetByteArrayLength(resultObj, (Tcl_Size) dk_len)) == NULL) {
Tcl_AppendResult(interp, "Memory allocation error", (char *) NULL);
goto error;
}
out_len = (size_t) dk_len;
/* Derive key */
if (EVP_PKEY_derive(pctx, out, &out_len) > 0) {
/* Shrink buffer to actual size */
Tcl_SetByteArrayLength(resultObj, (Tcl_Size) out_len);
Tcl_SetObjResult(interp, resultObj);
res = TCL_OK;
goto done;
} else {
Tcl_AppendResult(interp, "Key derivation failed: ", GET_ERR_REASON(), (char *) NULL);
Tcl_DecrRefCount(resultObj);
}
error:
res = TCL_ERROR;
done:
if (pctx != NULL) {
|
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|
pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_SCRYPT, NULL);
if (pctx == NULL) {
Tcl_AppendResult(interp, "Memory allocation error", (char *) NULL);
goto error;
}
if (EVP_PKEY_derive_init(pctx) < 1) {
Tcl_AppendResult(interp, "Initialize failed: ", REASON(), (char *) NULL);
goto error;
}
/* Set config parameters */
if (EVP_PKEY_CTX_set1_pbe_pass(pctx, pass, (int) pass_len) < 1) {
Tcl_AppendResult(interp, "Set key failed: ", REASON(), (char *) NULL);
goto error;
}
if (EVP_PKEY_CTX_set1_scrypt_salt(pctx, salt, (int) salt_len) < 1) {
Tcl_AppendResult(interp, "Set salt failed: ", REASON(), (char *) NULL);
goto error;
}
if (N != 0 && EVP_PKEY_CTX_set_scrypt_N(pctx, N) < 1) {
Tcl_AppendResult(interp, "Set cost parameter (N) failed: ", REASON(), (char *) NULL);
goto error;
}
if (r != 0 && EVP_PKEY_CTX_set_scrypt_r(pctx, r) < 1) {
Tcl_AppendResult(interp, "Set lock size parameter (r) failed: ", REASON(), (char *) NULL);
goto error;
}
if (p != 0 && EVP_PKEY_CTX_set_scrypt_p(pctx, p) < 1) {
Tcl_AppendResult(interp, "Set Parallelization parameter (p) failed: ", REASON(), (char *) NULL);
goto error;
}
if (maxmem != 0 && EVP_PKEY_CTX_set_scrypt_maxmem_bytes(pctx, maxmem) < 1) {
Tcl_AppendResult(interp, "Set max memory failed: ", REASON(), (char *) NULL);
goto error;
}
/* Get buffer */
resultObj = Tcl_NewObj();
if ((out = Tcl_SetByteArrayLength(resultObj, (Tcl_Size) dk_len)) == NULL) {
Tcl_AppendResult(interp, "Memory allocation error", (char *) NULL);
goto error;
}
out_len = (size_t) dk_len;
/* Derive key */
if (EVP_PKEY_derive(pctx, out, &out_len) > 0) {
/* Shrink buffer to actual size */
Tcl_SetByteArrayLength(resultObj, (Tcl_Size) out_len);
Tcl_SetObjResult(interp, resultObj);
goto done;
} else {
Tcl_AppendResult(interp, "Key derivation failed: ", REASON(), (char *) NULL);
Tcl_DecrRefCount(resultObj);
}
error:
res = TCL_ERROR;
done:
|
|
|
|
|
|
|
|
|
|
394
395
396
397
398
399
400
401
402
403
404
405
406
407
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412
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|
pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_SCRYPT, NULL);
if (pctx == NULL) {
Tcl_AppendResult(interp, "Memory allocation error", (char *) NULL);
goto error;
}
if (EVP_PKEY_derive_init(pctx) < 1) {
Tcl_AppendResult(interp, "Initialize failed: ", GET_ERR_REASON(), (char *) NULL);
goto error;
}
/* Set config parameters */
if (EVP_PKEY_CTX_set1_pbe_pass(pctx, pass, (int) pass_len) < 1) {
Tcl_AppendResult(interp, "Set key failed: ", GET_ERR_REASON(), (char *) NULL);
goto error;
}
if (EVP_PKEY_CTX_set1_scrypt_salt(pctx, salt, (int) salt_len) < 1) {
Tcl_AppendResult(interp, "Set salt failed: ", GET_ERR_REASON(), (char *) NULL);
goto error;
}
if (N != 0 && EVP_PKEY_CTX_set_scrypt_N(pctx, N) < 1) {
Tcl_AppendResult(interp, "Set cost parameter (N) failed: ", GET_ERR_REASON(), (char *) NULL);
goto error;
}
if (r != 0 && EVP_PKEY_CTX_set_scrypt_r(pctx, r) < 1) {
Tcl_AppendResult(interp, "Set lock size parameter (r) failed: ", GET_ERR_REASON(), (char *) NULL);
goto error;
}
if (p != 0 && EVP_PKEY_CTX_set_scrypt_p(pctx, p) < 1) {
Tcl_AppendResult(interp, "Set Parallelization parameter (p) failed: ", GET_ERR_REASON(), (char *) NULL);
goto error;
}
if (maxmem != 0 && EVP_PKEY_CTX_set_scrypt_maxmem_bytes(pctx, maxmem) < 1) {
Tcl_AppendResult(interp, "Set max memory failed: ", GET_ERR_REASON(), (char *) NULL);
goto error;
}
/* Get buffer */
resultObj = Tcl_NewObj();
if ((out = Tcl_SetByteArrayLength(resultObj, (Tcl_Size) dk_len)) == NULL) {
Tcl_AppendResult(interp, "Memory allocation error", (char *) NULL);
goto error;
}
out_len = (size_t) dk_len;
/* Derive key */
if (EVP_PKEY_derive(pctx, out, &out_len) > 0) {
/* Shrink buffer to actual size */
Tcl_SetByteArrayLength(resultObj, (Tcl_Size) out_len);
Tcl_SetObjResult(interp, resultObj);
goto done;
} else {
Tcl_AppendResult(interp, "Key derivation failed: ", GET_ERR_REASON(), (char *) NULL);
Tcl_DecrRefCount(resultObj);
}
error:
res = TCL_ERROR;
done:
|